NC not available after web updated 16 to 17

Hello,
I’m running a personal NC instance on a third party webhost. I have only very limited server knowledge. Any help apreciated, thanks!

Nextcloud version: 17.0.3.1
Operating system and version (eg, Ubuntu 17.04): unknown
Apache or nginx version (eg, Apache 2.4.25): ?
PHP version (eg, 7.1): 7.2.24

The issue you are facing:
Nextcloud isn’t available after update from 16.08 to 17.03 via webupdater.
Just before I updated from 16.07 to 16.08, which went fine also via wepupdater.

Is this the first time you’ve seen this error? (Y/N): Y

The output of your Nextcloud log in Admin > Logging:

Can't access

The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!):

<?php
$CONFIG = array (
  'instanceid' => '--redacted--',
  'passwordsalt' => '--redacted--',
  'secret' => '--redacted--',
  'trusted_domains' => 
  array (
    0 => '--redacted--',
  ),
  'datadirectory' => '/home/www/nextcloud/data',
  'dbtype' => 'mysql',
  'version' => '16.0.8.1',
  'overwrite.cli.url' => '--redacted--',
  'dbname' => '--redacted--',
  'dbhost' => '127.0.0.1:3306',
  'dbport' => '',
  'dbtableprefix' => 'oc_',
  'dbuser' => '--redacted--',
  'dbpassword' => '--redacted--',
  'installed' => true,
  'maintenance' => false,
  'theme' => '',
  'loglevel' => 2,
  'updater.release.channel' => 'production',
  'mail_smtpmode' => 'smtp',
  'mail_smtpsecure' => 'tls',
  'mail_sendmailmode' => 'smtp',
  'mail_from_address' => 'nextcloud',
  'mail_domain' => '--redacted--',
  'mail_smtpauth' => 1,
  'mail_smtpauthtype' => 'LOGIN',
  'mail_smtpport' => '587',
  'mail_smtphost' => '--redacted--',
  'mail_smtpname' => '--redacted--',
  'mail_smtppassword' => '--redacted--',
  'updater.secret' => '--redacted--',
);

The output of your Apache error_log:

[Sun Mar 08 12:56:14 2020] [error] AH01630: client denied by server configuration: /home/www/nextcloud/data/.ocdata
[Sun Mar 08 12:58:48 2020] [error] AH01630: client denied by server configuration: /home/www/nextcloud/data/.ocdata
[Sun Mar 08 13:08:58 2020] [error] AH01630: client denied by server configuration: /home/www/nextcloud/data/.ocdata
[Sun Mar 08 13:09:50 2020] [error] AH01630: client denied by server configuration: /home/www/nextcloud/data/.ocdata
[Sun Mar 08 13:18:49 2020] [error] PHP Fatal error:  Declaration of OCA\\GroupFolders\\Versions\\VersionsBackend::getVersionFile(OCP\\IUser $user, OCP\\Files\\FileInfo $sourceFile, int $revision): OCP\\Files\\File must be compatible with OCA\\Files_Versions\\Versions\\IVersionBackend::getVersionFile(OCP\\IUser $user, OCP\\Files\\FileInfo $sourceFile, $revision): OCP\\Files\\File in /home/www/nextcloud/apps/groupfolders/lib/Versions/VersionsBackend.php on line 38
[Sun Mar 08 13:20:09 2020] [error] PHP Fatal error:  Declaration of OCA\\GroupFolders\\Versions\\VersionsBackend::getVersionFile(OCP\\IUser $user, OCP\\Files\\FileInfo $sourceFile, int $revision): OCP\\Files\\File must be compatible with OCA\\Files_Versions\\Versions\\IVersionBackend::getVersionFile(OCP\\IUser $user, OCP\\Files\\FileInfo $sourceFile, $revision): OCP\\Files\\File in /home/www/nextcloud/apps/groupfolders/lib/Versions/VersionsBackend.php on line 38
[Sun Mar 08 13:20:09 2020] [error] PHP Fatal error:  Declaration of OCA\\GroupFolders\\Versions\\VersionsBackend::getVersionFile(OCP\\IUser $user, OCP\\Files\\FileInfo $sourceFile, int $revision): OCP\\Files\\File must be compatible with OCA\\Files_Versions\\Versions\\IVersionBackend::getVersionFile(OCP\\IUser $user, OCP\\Files\\FileInfo $sourceFile, $revision): OCP\\Files\\File in /home/www/nextcloud/apps/groupfolders/lib/Versions/VersionsBackend.php on line 38
[Sun Mar 08 13:21:11 2020] [error] PHP Fatal error:  Declaration of OCA\\GroupFolders\\Versions\\VersionsBackend::getVersionFile(OCP\\IUser $user, OCP\\Files\\FileInfo $sourceFile, int $revision): OCP\\Files\\File must be compatible with OCA\\Files_Versions\\Versions\\IVersionBackend::getVersionFile(OCP\\IUser $user, OCP\\Files\\FileInfo $sourceFile, $revision): OCP\\Files\\File in /home/www/nextcloud/apps/groupfolders/lib/Versions/VersionsBackend.php on line 38
[Sun Mar 08 13:21:11 2020] [error] PHP Fatal error:  Declaration of OCA\\GroupFolders\\Versions\\VersionsBackend::getVersionFile(OCP\\IUser $user, OCP\\Files\\FileInfo $sourceFile, int $revision): OCP\\Files\\File must be compatible with OCA\\Files_Versions\\Versions\\IVersionBackend::getVersionFile(OCP\\IUser $user, OCP\\Files\\FileInfo $sourceFile, $revision): OCP\\Files\\File in /home/www/nextcloud/apps/groupfolders/lib/Versions/VersionsBackend.php on line 38
[Sun Mar 08 13:21:34 2020] [error] PHP Fatal error:  Declaration of OCA\\GroupFolders\\Versions\\VersionsBackend::getVersionFile(OCP\\IUser $user, OCP\\Files\\FileInfo $sourceFile, int $revision): OCP\\Files\\File must be compatible with OCA\\Files_Versions\\Versions\\IVersionBackend::getVersionFile(OCP\\IUser $user, OCP\\Files\\FileInfo $sourceFile, $revision): OCP\\Files\\File in /home/www/nextcloud/apps/groupfolders/lib/Versions/VersionsBackend.php on line 38
[Sun Mar 08 13:21:41 2020] [error] PHP Fatal error:  Declaration of OCA\\GroupFolders\\Versions\\VersionsBackend::getVersionFile(OCP\\IUser $user, OCP\\Files\\FileInfo $sourceFile, int $revision): OCP\\Files\\File must be compatible with OCA\\Files_Versions\\Versions\\IVersionBackend::getVersionFile(OCP\\IUser $user, OCP\\Files\\FileInfo $sourceFile, $revision): OCP\\Files\\File in /home/www/nextcloud/apps/groupfolders/lib/Versions/VersionsBackend.php on line 38
[Sun Mar 08 13:25:36 2020] [error] PHP Fatal error:  Declaration of OCA\\GroupFolders\\Versions\\VersionsBackend::getVersionFile(OCP\\IUser $user, OCP\\Files\\FileInfo $sourceFile, int $revision): OCP\\Files\\File must be compatible with OCA\\Files_Versions\\Versions\\IVersionBackend::getVersionFile(OCP\\IUser $user, OCP\\Files\\FileInfo $sourceFile, $revision): OCP\\Files\\File in /home/www/nextcloud/apps/groupfolders/lib/Versions/VersionsBackend.php on line 38
[Sun Mar 08 13:25:42 2020] [error] PHP Fatal error:  Declaration of OCA\\GroupFolders\\Versions\\VersionsBackend::getVersionFile(OCP\\IUser $user, OCP\\Files\\FileInfo $sourceFile, int $revision): OCP\\Files\\File must be compatible with OCA\\Files_Versions\\Versions\\IVersionBackend::getVersionFile(OCP\\IUser $user, OCP\\Files\\FileInfo $sourceFile, $revision): OCP\\Files\\File in /home/www/nextcloud/apps/groupfolders/lib/Versions/VersionsBackend.php on line 38
[Sun Mar 08 13:26:02 2020] [error] PHP Fatal error:  Declaration of OCA\\GroupFolders\\Versions\\VersionsBackend::getVersionFile(OCP\\IUser $user, OCP\\Files\\FileInfo $sourceFile, int $revision): OCP\\Files\\File must be compatible with OCA\\Files_Versions\\Versions\\IVersionBackend::getVersionFile(OCP\\IUser $user, OCP\\Files\\FileInfo $sourceFile, $revision): OCP\\Files\\File in /home/www/nextcloud/apps/groupfolders/lib/Versions/VersionsBackend.php on line 38
[Sun Mar 08 13:26:02 2020] [error] PHP Fatal error:  Declaration of OCA\\GroupFolders\\Versions\\VersionsBackend::getVersionFile(OCP\\IUser $user, OCP\\Files\\FileInfo $sourceFile, int $revision): OCP\\Files\\File must be compatible with OCA\\Files_Versions\\Versions\\IVersionBackend::getVersionFile(OCP\\IUser $user, OCP\\Files\\FileInfo $sourceFile, $revision): OCP\\Files\\File in /home/www/nextcloud/apps/groupfolders/lib/Versions/VersionsBackend.php on line 38
[Sun Mar 08 13:28:47 2020] [error] PHP Fatal error:  Declaration of OCA\\GroupFolders\\Versions\\VersionsBackend::getVersionFile(OCP\\IUser $user, OCP\\Files\\FileInfo $sourceFile, int $revision): OCP\\Files\\File must be compatible with OCA\\Files_Versions\\Versions\\IVersionBackend::getVersionFile(OCP\\IUser $user, OCP\\Files\\FileInfo $sourceFile, $revision): OCP\\Files\\File in /home/www/nextcloud/apps/groupfolders/lib/Versions/VersionsBackend.php on line 38
[Sun Mar 08 13:28:55 2020] [error] script '/home/www/status.php' not found or unable to stat
[Sun Mar 08 13:28:55 2020] [error] script '/home/www/status.php' not found or unable to stat
[Sun Mar 08 13:29:44 2020] [error] PHP Fatal error:  Declaration of OCA\\GroupFolders\\Versions\\VersionsBackend::getVersionFile(OCP\\IUser $user, OCP\\Files\\FileInfo $sourceFile, int $revision): OCP\\Files\\File must be compatible with OCA\\Files_Versions\\Versions\\IVersionBackend::getVersionFile(OCP\\IUser $user, OCP\\Files\\FileInfo $sourceFile, $revision): OCP\\Files\\File in /home/www/nextcloud/apps/groupfolders/lib/Versions/VersionsBackend.php on line 38
[Sun Mar 08 13:40:36 2020] [error] PHP Fatal error:  Declaration of OCA\\GroupFolders\\Versions\\VersionsBackend::getVersionFile(OCP\\IUser $user, OCP\\Files\\FileInfo $sourceFile, int $revision): OCP\\Files\\File must be compatible with OCA\\Files_Versions\\Versions\\IVersionBackend::getVersionFile(OCP\\IUser $user, OCP\\Files\\FileInfo $sourceFile, $revision): OCP\\Files\\File in /home/www/nextcloud/apps/groupfolders/lib/Versions/VersionsBackend.php on line 38
[Sun Mar 08 13:40:41 2020] [error] PHP Fatal error:  Declaration of OCA\\GroupFolders\\Versions\\VersionsBackend::getVersionFile(OCP\\IUser $user, OCP\\Files\\FileInfo $sourceFile, int $revision): OCP\\Files\\File must be compatible with OCA\\Files_Versions\\Versions\\IVersionBackend::getVersionFile(OCP\\IUser $user, OCP\\Files\\FileInfo $sourceFile, $revision): OCP\\Files\\File in /home/www/nextcloud/apps/groupfolders/lib/Versions/VersionsBackend.php on line 38
[Sun Mar 08 13:41:01 2020] [error] PHP Fatal error:  Declaration of OCA\\GroupFolders\\Versions\\VersionsBackend::getVersionFile(OCP\\IUser $user, OCP\\Files\\FileInfo $sourceFile, int $revision): OCP\\Files\\File must be compatible with OCA\\Files_Versions\\Versions\\IVersionBackend::getVersionFile(OCP\\IUser $user, OCP\\Files\\FileInfo $sourceFile, $revision): OCP\\Files\\File in /home/www/nextcloud/apps/groupfolders/lib/Versions/VersionsBackend.php on line 38
[Sun Mar 08 13:41:01 2020] [error] PHP Fatal error:  Declaration of OCA\\GroupFolders\\Versions\\VersionsBackend::getVersionFile(OCP\\IUser $user, OCP\\Files\\FileInfo $sourceFile, int $revision): OCP\\Files\\File must be compatible with OCA\\Files_Versions\\Versions\\IVersionBackend::getVersionFile(OCP\\IUser $user, OCP\\Files\\FileInfo $sourceFile, $revision): OCP\\Files\\File in /home/www/nextcloud/apps/groupfolders/lib/Versions/VersionsBackend.php on line 38

Anyone?

Btw:
When I use https://scan.nextcloud.com/ it says

Running Nextcloud 17.0.3.1
Rating A

If You have shell access, update second stage with via cli:

sudo -u www-data occ upgrade -vv

I don’t have a shell access…

Ok, I managed to get shell access:

~/www/nextcloud$ sudo -u www-data occ upgrade -vv
sudo: unknown user: www-data
sudo: unable to initialize policy plugin

… but to no avail…

What is even the problem???

What is the name of the user that owns the files in youre nextcloud? (in youre linux system)
You can see it with:

ls -l

Then:

sudo -u <user> php occ upgrade -vv

Thank you @thijssie85 that helped!

Nextcloud or one of the apps require upgrade - only a limited number of commands are available
You may use your browser or the occ upgrade command to do the upgrade
2020-03-12T17:49:12+00:00 Set log level to debug
2020-03-12T17:49:12+00:00 Turned on maintenance mode
2020-03-12T17:49:12+00:00 Repair step: Repair MySQL collation
2020-03-12T17:49:12+00:00 Repair info: All tables already have the correct collation -> nothing to do
2020-03-12T17:49:12+00:00 Repair step: Repair SQLite autoincrement
2020-03-12T17:49:12+00:00 Repair step: Copy data from accounts table when migrating from ownCloud
2020-03-12T17:49:13+00:00 Repair step: Drop account terms table when migrating from ownCloud
2020-03-12T17:49:13+00:00 Updating database schema
2020-03-12T17:49:14+00:00 Updated database
2020-03-12T17:49:14+00:00 Disabled incompatible app: files_texteditor
2020-03-12T17:49:14+00:00 Disabled incompatible app: groupfolders
2020-03-12T17:49:14+00:00 Disabled incompatible app: spreed
2020-03-12T17:49:14+00:00 Updating <accessibility> ...
2020-03-12T17:49:14+00:00 Updated <accessibility> to 1.3.0
2020-03-12T17:49:14+00:00 Updating <federatedfilesharing> ...
2020-03-12T17:49:14+00:00 Updated <federatedfilesharing> to 1.7.0
2020-03-12T17:49:14+00:00 Updating <files_pdfviewer> ...
2020-03-12T17:49:15+00:00 Updated <files_pdfviewer> to 1.6.0
2020-03-12T17:49:15+00:00 Updating <files_rightclick> ...
2020-03-12T17:49:15+00:00 Updated <files_rightclick> to 0.14.2
2020-03-12T17:49:15+00:00 Updating <files_videoplayer> ...
2020-03-12T17:49:15+00:00 Updated <files_videoplayer> to 1.6.0
2020-03-12T17:49:15+00:00 Updating <gallery> ...
2020-03-12T17:49:15+00:00 Updated <gallery> to 18.4.0
2020-03-12T17:49:15+00:00 Updating <logreader> ...
2020-03-12T17:49:16+00:00 Updated <logreader> to 2.2.0
2020-03-12T17:49:16+00:00 Updating <password_policy> ...
2020-03-12T17:49:16+00:00 Updated <password_policy> to 1.7.0
2020-03-12T17:49:16+00:00 Updating <privacy> ...
2020-03-12T17:49:16+00:00 Updated <privacy> to 1.1.0
2020-03-12T17:49:16+00:00 Updating <provisioning_api> ...
2020-03-12T17:49:17+00:00 Updated <provisioning_api> to 1.7.0
2020-03-12T17:49:17+00:00 Updating <recommendations> ...
2020-03-12T17:49:17+00:00 Updated <recommendations> to 0.5.0
2020-03-12T17:49:17+00:00 Updating <serverinfo> ...
2020-03-12T17:49:17+00:00 Updated <serverinfo> to 1.7.0
2020-03-12T17:49:17+00:00 Updating <support> ...
2020-03-12T17:49:17+00:00 Updated <support> to 1.0.1
2020-03-12T17:49:17+00:00 Updating <survey_client> ...
2020-03-12T17:49:18+00:00 Updated <survey_client> to 1.5.0
2020-03-12T17:49:18+00:00 Updating <text> ...
2020-03-12T17:49:18+00:00 Updated <text> to 1.1.1
2020-03-12T17:49:18+00:00 Updating <twofactor_backupcodes> ...
2020-03-12T17:49:18+00:00 Repair step: Add background job to check for backup codes
2020-03-12T17:49:18+00:00 Updated <twofactor_backupcodes> to 1.6.0
2020-03-12T17:49:18+00:00 Updating <updatenotification> ...
2020-03-12T17:49:19+00:00 Updated <updatenotification> to 1.7.0
2020-03-12T17:49:19+00:00 Updating <federation> ...
2020-03-12T17:49:19+00:00 Updated <federation> to 1.7.0
2020-03-12T17:49:19+00:00 Updating <lookup_server_connector> ...
2020-03-12T17:49:19+00:00 Updated <lookup_server_connector> to 1.5.0
2020-03-12T17:49:19+00:00 Updating <oauth2> ...
2020-03-12T17:49:19+00:00 Repair step: Update OAuth token expiration times
2020-03-12T17:49:19+00:00 Updated <oauth2> to 1.5.0
2020-03-12T17:49:19+00:00 Updating <files> ...
2020-03-12T17:49:20+00:00 Updated <files> to 1.12.0
2020-03-12T17:49:20+00:00 Updating <activity> ...
2020-03-12T17:49:20+00:00 Updated <activity> to 2.10.1
2020-03-12T17:49:20+00:00 Updating <cloud_federation_api> ...
2020-03-12T17:49:20+00:00 Updated <cloud_federation_api> to 1.0.0
2020-03-12T17:49:20+00:00 Updating <dav> ...
2020-03-12T17:49:22+00:00 Repair step: Fix component of birthday calendars
2020-03-12T17:49:22+00:00 Repair info: 5 birthday calendars updated.
2020-03-12T17:49:22+00:00 Repair step: Regenerating birthday calendars to use new icons and fix old birthday events without year
2020-03-12T17:49:22+00:00 Repair info: Adding background jobs to regenerate birthday calendar
2020-03-12T17:49:22+00:00 Repair step: Fix broken values of calendar objects
2020-03-12T17:49:22+00:00 Fix broken values of calendar objects
2020-03-12T17:49:22+00:00 
 Done
    0/0 [>-]   0%2020-03-12T17:49:22+00:00 
2020-03-12T17:49:22+00:00 Repair step: Registering building of calendar search index as background job
2020-03-12T17:49:22+00:00 Repair info: Add background job
2020-03-12T17:49:22+00:00 Repair step: Registering background jobs to update cache for webcal calendars
2020-03-12T17:49:22+00:00 Repair info: Added 0 background jobs to update webcal calendars
2020-03-12T17:49:22+00:00 Repair step: Registering building of calendar reminder index as background job
2020-03-12T17:49:22+00:00 Repair info: Add background job
2020-03-12T17:49:22+00:00 Repair step: Clean up orphan event and contact data
2020-03-12T17:49:22+00:00 Repair info: 0 events without a calendar have been cleaned up
2020-03-12T17:49:22+00:00 Repair info: 0 properties without an events have been cleaned up
2020-03-12T17:49:22+00:00 Repair info: 0 changes without a calendar have been cleaned up
2020-03-12T17:49:22+00:00 Repair info: 0 cached events without a calendar subscription have been cleaned up
2020-03-12T17:49:22+00:00 Repair info: 0 changes without a calendar subscription have been cleaned up
2020-03-12T17:49:22+00:00 Repair info: 0 contacts without an addressbook have been cleaned up
2020-03-12T17:49:22+00:00 Repair info: 0 properties without a contact have been cleaned up
2020-03-12T17:49:22+00:00 Repair info: 0 changes without an addressbook have been cleaned up
2020-03-12T17:49:22+00:00 Repair step: Remove activity entries of private events
2020-03-12T17:49:22+00:00 Repair info: Removed 0 activity entries
2020-03-12T17:49:22+00:00 Updated <dav> to 1.13.0
2020-03-12T17:49:22+00:00 Updating <files_sharing> ...
2020-03-12T17:49:22+00:00 Repair step: Fix the share type of guest shares when migrating from ownCloud
2020-03-12T17:49:22+00:00 Repair step: Copy the share password into the dedicated column
2020-03-12T17:49:22+00:00 Updated <files_sharing> to 1.9.0
2020-03-12T17:49:22+00:00 Updating <files_trashbin> ...
2020-03-12T17:49:22+00:00 Updated <files_trashbin> to 1.7.0
2020-03-12T17:49:22+00:00 Updating <files_versions> ...
2020-03-12T17:49:23+00:00 Updated <files_versions> to 1.10.0
2020-03-12T17:49:23+00:00 Updating <sharebymail> ...
2020-03-12T17:49:23+00:00 Updated <sharebymail> to 1.7.0
2020-03-12T17:49:23+00:00 Updating <workflowengine> ...
2020-03-12T17:49:23+00:00 Updated <workflowengine> to 1.7.0
2020-03-12T17:49:23+00:00 Updating <comments> ...
2020-03-12T17:49:23+00:00 Updated <comments> to 1.7.0
2020-03-12T17:49:23+00:00 Updating <firstrunwizard> ...
2020-03-12T17:49:23+00:00 Updated <firstrunwizard> to 2.6.0
2020-03-12T17:49:23+00:00 Updating <nextcloud_announcements> ...
2020-03-12T17:49:24+00:00 Updated <nextcloud_announcements> to 1.6.0
2020-03-12T17:49:24+00:00 Updating <notifications> ...
2020-03-12T17:49:24+00:00 Updated <notifications> to 2.5.0
2020-03-12T17:49:24+00:00 Updating <systemtags> ...
2020-03-12T17:49:24+00:00 Updated <systemtags> to 1.7.0
2020-03-12T17:49:24+00:00 Updating <theming> ...
2020-03-12T17:49:24+00:00 Updated <theming> to 1.8.0
2020-03-12T17:49:24+00:00 Checking for update of app accessibility in appstore
2020-03-12T17:49:25+00:00 Checked for update of app "accessibility" in appstore 
2020-03-12T17:49:25+00:00 Checking for update of app activity in appstore
2020-03-12T17:49:25+00:00 Checked for update of app "activity" in appstore 
2020-03-12T17:49:25+00:00 Checking for update of app apporder in appstore
2020-03-12T17:49:25+00:00 Checked for update of app "apporder" in appstore 
2020-03-12T17:49:25+00:00 Checking for update of app bruteforcesettings in appstore
2020-03-12T17:49:25+00:00 Checked for update of app "bruteforcesettings" in appstore 
2020-03-12T17:49:25+00:00 Checking for update of app calendar in appstore
2020-03-12T17:49:25+00:00 Update app calendar from appstore
2020-03-12T17:49:27+00:00 Repair step: Update name of the stored view
2020-03-12T17:49:27+00:00 Checked for update of app "calendar" in appstore 
2020-03-12T17:49:27+00:00 Checking for update of app cloud_federation_api in appstore
2020-03-12T17:49:27+00:00 Checked for update of app "cloud_federation_api" in appstore 
2020-03-12T17:49:27+00:00 Checking for update of app comments in appstore
2020-03-12T17:49:27+00:00 Checked for update of app "comments" in appstore 
2020-03-12T17:49:27+00:00 Checking for update of app contacts in appstore
2020-03-12T17:49:27+00:00 Checked for update of app "contacts" in appstore 
2020-03-12T17:49:27+00:00 Checking for update of app dav in appstore
2020-03-12T17:49:27+00:00 Checked for update of app "dav" in appstore 
2020-03-12T17:49:27+00:00 Checking for update of app federatedfilesharing in appstore
2020-03-12T17:49:27+00:00 Checked for update of app "federatedfilesharing" in appstore 
2020-03-12T17:49:27+00:00 Checking for update of app federation in appstore
2020-03-12T17:49:27+00:00 Checked for update of app "federation" in appstore 
2020-03-12T17:49:27+00:00 Checking for update of app files in appstore
2020-03-12T17:49:27+00:00 Checked for update of app "files" in appstore 
2020-03-12T17:49:27+00:00 Checking for update of app files_pdfviewer in appstore
2020-03-12T17:49:27+00:00 Checked for update of app "files_pdfviewer" in appstore 
2020-03-12T17:49:27+00:00 Checking for update of app files_rightclick in appstore
2020-03-12T17:49:27+00:00 Update app files_rightclick from appstore
2020-03-12T17:49:28+00:00 Checked for update of app "files_rightclick" in appstore 
2020-03-12T17:49:28+00:00 Checking for update of app files_sharing in appstore
2020-03-12T17:49:28+00:00 Checked for update of app "files_sharing" in appstore 
2020-03-12T17:49:28+00:00 Checking for update of app files_trashbin in appstore
2020-03-12T17:49:28+00:00 Checked for update of app "files_trashbin" in appstore 
2020-03-12T17:49:28+00:00 Checking for update of app files_versions in appstore
2020-03-12T17:49:28+00:00 Checked for update of app "files_versions" in appstore 
2020-03-12T17:49:28+00:00 Checking for update of app files_videoplayer in appstore
2020-03-12T17:49:28+00:00 Checked for update of app "files_videoplayer" in appstore 
2020-03-12T17:49:28+00:00 Checking for update of app firstrunwizard in appstore
2020-03-12T17:49:28+00:00 Checked for update of app "firstrunwizard" in appstore 
2020-03-12T17:49:28+00:00 Checking for update of app gallery in appstore
2020-03-12T17:49:28+00:00 Checked for update of app "gallery" in appstore 
2020-03-12T17:49:28+00:00 Checking for update of app keeweb in appstore
2020-03-12T17:49:28+00:00 Checked for update of app "keeweb" in appstore 
2020-03-12T17:49:28+00:00 Checking for update of app logreader in appstore
2020-03-12T17:49:28+00:00 Checked for update of app "logreader" in appstore 
2020-03-12T17:49:28+00:00 Checking for update of app lookup_server_connector in appstore
2020-03-12T17:49:28+00:00 Checked for update of app "lookup_server_connector" in appstore 
2020-03-12T17:49:28+00:00 Checking for update of app mail in appstore
2020-03-12T17:49:28+00:00 Update app mail from appstore
2020-03-12T17:49:35+00:00 Repair step: Purify and migrate collected mail addresses
2020-03-12T17:49:35+00:00 Purify and migrate collected mail addresses
 Done
    0/0 [>-]   0%2020-03-12T17:49:35+00:00 
2020-03-12T17:49:35+00:00 Repair step: Make Mail itinerary extractor executable
2020-03-12T17:49:35+00:00 Repair step: Migrate Mail provisioning config from config.php to the database
2020-03-12T17:49:35+00:00 Repair info: No old config found
2020-03-12T17:49:35+00:00 Repair step: Create or update provisioned Mail accounts
2020-03-12T17:49:35+00:00 Repair info: No Mail provisioning config set
2020-03-12T17:49:35+00:00 Checked for update of app "mail" in appstore 
2020-03-12T17:49:35+00:00 Checking for update of app maps in appstore
2020-03-12T17:49:35+00:00 Update app maps from appstore
2020-03-12T17:49:39+00:00 Checked for update of app "maps" in appstore 
2020-03-12T17:49:39+00:00 Checking for update of app metadata in appstore
2020-03-12T17:49:39+00:00 Checked for update of app "metadata" in appstore 
2020-03-12T17:49:39+00:00 Checking for update of app nextcloud_announcements in appstore
2020-03-12T17:49:39+00:00 Checked for update of app "nextcloud_announcements" in appstore 
2020-03-12T17:49:39+00:00 Checking for update of app notes in appstore
2020-03-12T17:49:39+00:00 Checked for update of app "notes" in appstore 
2020-03-12T17:49:39+00:00 Checking for update of app notifications in appstore
2020-03-12T17:49:39+00:00 Checked for update of app "notifications" in appstore 
2020-03-12T17:49:39+00:00 Checking for update of app oauth2 in appstore
2020-03-12T17:49:39+00:00 Checked for update of app "oauth2" in appstore 
2020-03-12T17:49:39+00:00 Checking for update of app password_policy in appstore
2020-03-12T17:49:39+00:00 Checked for update of app "password_policy" in appstore 
2020-03-12T17:49:39+00:00 Checking for update of app privacy in appstore
2020-03-12T17:49:39+00:00 Checked for update of app "privacy" in appstore 
2020-03-12T17:49:39+00:00 Checking for update of app provisioning_api in appstore
2020-03-12T17:49:39+00:00 Checked for update of app "provisioning_api" in appstore 
2020-03-12T17:49:39+00:00 Checking for update of app recommendations in appstore
2020-03-12T17:49:39+00:00 Checked for update of app "recommendations" in appstore 
2020-03-12T17:49:39+00:00 Checking for update of app richdocuments in appstore
2020-03-12T17:49:39+00:00 Checked for update of app "richdocuments" in appstore 
2020-03-12T17:49:39+00:00 Checking for update of app serverinfo in appstore
2020-03-12T17:49:39+00:00 Checked for update of app "serverinfo" in appstore 
2020-03-12T17:49:39+00:00 Checking for update of app sharebymail in appstore
2020-03-12T17:49:39+00:00 Checked for update of app "sharebymail" in appstore 
2020-03-12T17:49:39+00:00 Checking for update of app socialsharing_email in appstore
2020-03-12T17:49:39+00:00 Checked for update of app "socialsharing_email" in appstore 
2020-03-12T17:49:39+00:00 Checking for update of app support in appstore
2020-03-12T17:49:39+00:00 Checked for update of app "support" in appstore 
2020-03-12T17:49:39+00:00 Checking for update of app survey_client in appstore
2020-03-12T17:49:39+00:00 Checked for update of app "survey_client" in appstore 
2020-03-12T17:49:39+00:00 Checking for update of app systemtags in appstore
2020-03-12T17:49:39+00:00 Checked for update of app "systemtags" in appstore 
2020-03-12T17:49:39+00:00 Checking for update of app tasks in appstore
2020-03-12T17:49:39+00:00 Update app tasks from appstore
2020-03-12T17:49:41+00:00 Checked for update of app "tasks" in appstore 
2020-03-12T17:49:41+00:00 Checking for update of app text in appstore
2020-03-12T17:49:41+00:00 Checked for update of app "text" in appstore 
2020-03-12T17:49:41+00:00 Checking for update of app theming in appstore
2020-03-12T17:49:41+00:00 Checked for update of app "theming" in appstore 
2020-03-12T17:49:41+00:00 Checking for update of app twofactor_backupcodes in appstore
2020-03-12T17:49:41+00:00 Checked for update of app "twofactor_backupcodes" in appstore 
2020-03-12T17:49:41+00:00 Checking for update of app updatenotification in appstore
2020-03-12T17:49:41+00:00 Checked for update of app "updatenotification" in appstore 
2020-03-12T17:49:41+00:00 Checking for update of app viewer in appstore
2020-03-12T17:49:41+00:00 Checked for update of app "viewer" in appstore 
2020-03-12T17:49:41+00:00 Checking for update of app workflowengine in appstore
2020-03-12T17:49:41+00:00 Checked for update of app "workflowengine" in appstore 
2020-03-12T17:49:41+00:00 Checking for update of app files_texteditor in appstore
2020-03-12T17:49:41+00:00 Checked for update of app "files_texteditor" in appstore 
2020-03-12T17:49:41+00:00 Checking for update of app groupfolders in appstore
2020-03-12T17:49:41+00:00 Update app groupfolders from appstore
2020-03-12T17:49:44+00:00 Checked for update of app "groupfolders" in appstore 
2020-03-12T17:49:44+00:00 Checking for update of app spreed in appstore
2020-03-12T17:49:44+00:00 Update app spreed from appstore
2020-03-12T17:49:49+00:00 Repair step: Create help command
2020-03-12T17:49:49+00:00 Repair step: Invalidate access cache for projects conversation provider
2020-03-12T17:49:49+00:00 Checked for update of app "spreed" in appstore 
2020-03-12T17:49:49+00:00 Repair step: Create help command
2020-03-12T17:49:49+00:00 Repair step: Invalidate access cache for projects conversation provider
2020-03-12T17:49:49+00:00 Repair info: Invalidation not required
2020-03-12T17:49:49+00:00 Repair step: Create help command
2020-03-12T17:49:49+00:00 Repair step: Repair MySQL collation
2020-03-12T17:49:49+00:00 Repair info: All tables already have the correct collation -> nothing to do
2020-03-12T17:49:49+00:00 Repair step: Repair mime types
2020-03-12T17:49:49+00:00 Repair step: Clean tags and favorites
2020-03-12T17:49:49+00:00 Repair info: 0 tags of deleted users have been removed.
2020-03-12T17:49:49+00:00 Repair info: 0 tags for delete files have been removed.
2020-03-12T17:49:49+00:00 Repair info: 0 tag entries for deleted tags have been removed.
2020-03-12T17:49:49+00:00 Repair info: 0 tags with no entries have been removed.
2020-03-12T17:49:49+00:00 Repair step: Repair invalid shares
2020-03-12T17:49:49+00:00 Repair step: Move .step file of updater to backup location
2020-03-12T17:49:49+00:00 Repair info: .step file exists
2020-03-12T17:49:49+00:00 Repair info: .step-previous-update removed
2020-03-12T17:49:49+00:00 Repair info: .step file moved to .step-previous-update
2020-03-12T17:49:49+00:00 Repair step: Fix potential broken mount points
2020-03-12T17:49:49+00:00 Repair info: No mounts updated
2020-03-12T17:49:49+00:00 Repair step: Add log rotate job
2020-03-12T17:49:49+00:00 Repair step: Clear frontend caches
2020-03-12T17:49:49+00:00 Repair info: Image cache cleared
2020-03-12T17:49:49+00:00 Repair info: SCSS cache cleared
2020-03-12T17:49:49+00:00 Repair info: JS cache cleared
2020-03-12T17:49:49+00:00 Repair step: Clear every generated avatar on major updates
2020-03-12T17:49:49+00:00 Repair step: Add preview background cleanup job
2020-03-12T17:49:49+00:00 Repair step: Queue a one-time job to cleanup old backups of the updater
2020-03-12T17:49:49+00:00 Repair step: Cleanup invalid photocache files for carddav
2020-03-12T17:49:49+00:00 Repair step: Add background job to cleanup login flow v2 tokens
2020-03-12T17:49:49+00:00 Repair step: Remove potentially over exposing share links
2020-03-12T17:49:49+00:00 Repair info: No need to remove link shares.
2020-03-12T17:49:49+00:00 Repair step: Clear access cache of projects
2020-03-12T17:49:49+00:00 Repair step: Cleanup cypress files from viewer app
2020-03-12T17:49:57+00:00 Repair step: Switches from deprecated "production" to "stable" update channel
2020-03-12T17:49:57+00:00 Repair step: Sets the enterprise logo
2020-03-12T17:49:57+00:00 Starting code integrity check...
2020-03-12T17:50:06+00:00 Finished code integrity check
2020-03-12T17:50:06+00:00 Update successful
2020-03-12T17:50:06+00:00 Turned off maintenance mode
2020-03-12T17:50:06+00:00 Reset log level

Can someone enlighten me what the error was, or do I have to just expect this every now and then?

In the Admin overview:

There are some errors regarding your setup.

  • Some files have not passed the integrity check. Further information on how to resolve this issue can be found in the documentation. ([List of invalid files…]
  • No memory cache has been configured. To enhance performance, please configure a memcache, if available. Further information can be found in the [documentation].
  • The PHP OPcache module is not loaded. [For better performance it is recommended to load it into your PHP installation.
  • This instance is missing some recommended PHP modules. For improved performance and better compatibility it is highly recommended to install them.
    imagick
  • Some columns in the database are missing a conversion to big int. Due to the fact that changing column types on big tables could take some time they were not changed automatically. By running ‘occ db:convert-filecache-bigint’ those pending changes could be applied manually. This operation needs to be made while the instance is offline. For further details read the documentation page about this.
    • mounts.storage_id
    • mounts.root_id
    • mounts.mount_id

Please double check the installation guides :arrow_upper_right:, and check for any errors or warnings in the [log].

Also an update to 17.0.4 is available.

Should I resolve the integrity and db-stuff before or after the update?

Yes, that is what i should do

What does yes mean?

Sorry first the integrity and db-stuff