NC 3 Client error. No sync possible. Client freezes instantly

Nextcloud version:
Server:
19.0.3.1
Client: Nextcloud version 3.0.2git (build 3559)
Git revision 068ad89d8d1a7133f9f645b07fbc21fc619726f2
Using Qt 5.12.9, built against Qt 5.12.9
Using Qt platform plugin β€˜cocoa’
Using β€˜OpenSSL 1.1.1g 21 Apr 2020’
Running on macOS Mojave (10.14), x86_64

Operating system and version: macOS Mojave 10.14.6
Apache or nginx version: Apache/2.4.29 (Ubuntu)
PHP version: PHP 7.2.24-0ubuntu0.18.04.6 (cli) (built: May 26 2020 13:09:11) ( NTS )

The issue you are facing:
I have a strange problem with my nextcloud client. When I start the client on mac it freezes and blocks the entire system. I can not interact with the tool bar widget nor with the GUI. I have my nextcloud folder on an external micro sd card.

Is this the first time you’ve seen this error?: N

Steps to replicate it:

  1. start nextcloud client
  2. start sync
  3. client freezes

The output of your Nextcloud log in Admin > Logging:
see attached file

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

───────┬────────────────────────────────────────────────────────────────────────────────────────────────────
       β”‚ File: config.php
───────┼────────────────────────────────────────────────────────────────────────────────────────────────────
   1   β”‚ <?php
   2   β”‚ $CONFIG = array (
   3   β”‚   'instanceid' => 'ocsoch9cx9p3',
   4   β”‚   'passwordsalt' => '7eAP09LBl+62Omc+NkgZ1tm9YBqz9O',
   5   β”‚   'secret' => 'zo1x13yuvtdoO5KuyG6zX/L8ZxcJkwRLG+QImlEXz1gCuLA5',
   6   β”‚   'trusted_domains' => 
   7   β”‚   array (
   8   β”‚     0 => '',
   9   β”‚     1 => '',
  10   β”‚   ),
  11   β”‚   'datadirectory' => '/opt/nextcloud/',
  12   β”‚   'dbtype' => 'mysql',
  13   β”‚   'version' => '19.0.3.1',
  14   β”‚   'overwrite.cli.url' => 'https://URLURLURLURL.stratoserver.net/nextcloud',
  15   β”‚   'dbname' => 'nextcloud',
  16   β”‚   'dbhost' => 'localhost',
  17   β”‚   'dbport' => '',
  18   β”‚   'dbtableprefix' => 'oc_',
  19   β”‚   'dbuser' => '',
  20   β”‚   'dbpassword' => '',
  21   β”‚   'installed' => true,
  22   β”‚   'maintenance' => false,
  23   β”‚   'mysql.utf8mb4' => true,
  24   β”‚   'memcache.local' => '\\OC\\Memcache\\APCu',
  25   β”‚   'app_install_overwrite' => 
  26   β”‚   array (
  27   β”‚     0 => 'files_external_onedrive',
  28   β”‚   ),
  29   β”‚   'theme' => '',
  30   β”‚   'loglevel' => 2,
  31   β”‚   'updater.secret' => '',
  32   β”‚ );
───────┴────────────────────────────────────────────────────────────────────────────────────────────────────

The output of your Apache/nginx/system log in /var/log/apache2/error.log.1:

[Sun Oct 25 01:53:02.176357 2020] [ssl:warn] [pid 5392] AH01909: h2889612.stratoserver.net:443:0 server certificate does NOT include an ID which matches the server name
[Sun Oct 25 01:53:02.176552 2020] [mpm_prefork:notice] [pid 5392] AH00163: Apache/2.4.29 (Ubuntu) OpenSSL/1.1.1 configured -- resuming normal operations
[Sun Oct 25 01:53:02.176561 2020] [core:notice] [pid 5392] AH00094: Command line: '/usr/sbin/apache2'
[Sun Oct 25 02:06:13.889470 2020] [php7:error] [pid 6778] [client 193.27.229.26:52732] script '/var/www/html/index.php' not found or unable to stat, referer: http://85.214.111.205:80/index.php?s=/Index/\\think\\app/invokefunction&function=call_user_func_array&vars[0]=md5&vars[1][]=HelloThinkPHP
[Sun Oct 25 09:15:29.960787 2020] [php7:error] [pid 7999] [client 188.166.79.11:28278] script '/var/www/html/system_api.php' not found or unable to stat
[Mon Oct 26 01:53:01.722813 2020] [mpm_prefork:notice] [pid 5392] AH00171: Graceful restart requested, doing restart

I don’t know what is happening, nor how to fix this error. It’s very annoying because I cannot sync my macbook. Is there a way to reset the client? Can I do a resync of the client or sth like that? Thanks in advance for your help :slight_smile:

You should first fix your certificate problem, to prevent any unexpected problems. I don’t know under which domain name you want to access your server on the Internet.
The FQDN β€œh2889612.stratoserver.net” is most likely not the correct name, beside the fact that it is currently configured to use a self-signed certificate for the domain β€œlocalhost.localdomain”!

On the following page you will find a description how to order and configure your web space with a valid certificate: