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Sorry to hear you’re facing problems 
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In order to help you as quickly as possible, before clicking Create Topic please provide as much of the below as you can. Feel free to use a pastebin service for logs, otherwise either indent short log examples with four spaces:
example
Or for longer, use three backticks above and below the code snippet:
longer
example
here
Some or all of the below information will be requested if it isn’t supplied; for fastest response please provide as much as you can 
Nextcloud version (eg, 20.0.5): Nextcloud Hub 5 (27.0.2)
Operating system and version (eg, Ubuntu 20.04): Arch Linux rolling
Apache or nginx version (eg, Apache 2.4.25): nginx/1.25.1
PHP version (eg, 7.4): php 8.2.8
All these run in docker containers “nextcloud:fpm-alpine, nginx:alpine, redis:alpine, mariadb:latest”
The issue you are facing:
When using keycloak saml login to nextcloud, with long back disabled encryption
# occ encryption:status
- enabled: false
- defaultModule: OC_DEFAULT_MODULE
Is this the first time you’ve seen this error? (Y/N): Yes
Steps to replicate it:
- setup an encryption at NC version 20, then disable it
- implement saml SSO setup with keycloak 20+
- get an
The output of your Nextcloud log in Admin > Logging:
[PHP] Error: TypeError: OCA\Encryption\Crypto\Crypt::generatePasswordHash(): Argument #1 ($password) must be of type string, null given, called in /var/www/html/apps/encryption/lib/Crypto/Crypt.php on line 435 at /var/www/html/apps/encryption/lib/Crypto/Crypt.php#374
GET /ocs/v2.php/apps/notifications/api/v2/notifications
The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!):
<?php
$CONFIG = array (
'passwordsalt' => '************',
'secret' => '*********',
'trusted_domains' =>
array (
******
),
'trusted_proxies' =>
array (
0 => '192.168.******',
),
'overwrite.cli.url' => 'https://********/',
'overwritecondaddr' => '',
'overwriteprotocol' => 'https',
'version' => '27.0.2.1',
'debug' => false,
'datadirectory' => '/var/www/nextcloud/data',
'dbtype' => 'mysql',
'dbtableprefix' => 'oc_',
'dbname' => 'nextcloud',
'dbhost' => 'mariadb',
'dbport' => '3306',
'dbuser' => 'nextcloud',
'dbpassword' => '**************',
'logtimezone' => 'UTC',
'installed' => true,
'instanceid' => '*******',
'maintenance' => false,
'singleuser' => false,
'updater.release.channel' => 'stable',
'theme' => '',
'loglevel' => 1,
'mail_from_address' => 'nextcloud',
'mail_smtpmode' => 'smtp',
'mail_smtpauthtype' => 'PLAIN',
'mail_domain' => '*****',
'log_type' => 'file',
'mysql.utf8mb4' => true,
'mail_sendmailmode' => 'pipe',
'mail_smtpsecure' => 'tls',
'mail_smtphost' => '*****',
'mail_smtpport' => '25',
'default_phone_region' => '**',
#'encryption.legacy_format_support' => false,
'memcache.local' => '\\OC\\Memcache\\APCu',
'memcache.distributed' => '\\OC\\Memcache\\Redis',
'redis' =>
array (
'host' => 'redis',
'port' => 6379,
),
'memcache.locking' => '\\OC\\Memcache\\Redis',
The output of your Apache/nginx/system log in /var/log/____:
PASTE HERE
PASTE HERE
Output errors in nextcloud.log in /var/www/ or as admin user in top right menu, filtering for errors. Use a pastebin service if necessary.
/Files/View.php","line":1352,"function":"find","class":"OC\\Files\\Mount\\Manager","type":"->","args":["/appdata_octhjg4inrv
z/js/core"]},{"file":"/var/www/html/lib/private/Files/Node/Root.php","line":205,"function":"getFileInfo","class":"OC\\Files\
\View","type":"->","args":["/appdata_octhjg4inrvz/js/core",false]},{"function":"get","class":"OC\\Files\\Node\\Root","type":
"->","args":["/appdata_octhjg4inrvz/js/core"]},{"file":"/var/www/html/lib/private/Files/Node/LazyFolder.php","line":73,"func
tion":"call_user_func_array","args":[[["OC\\Files\\Node\\Root"],"get"],["appdata_octhjg4inrvz/js/core"]]},{"file":"/var/www/
html/lib/private/Files/Node/LazyFolder.php","line":150,"function":"__call","class":"OC\\Files\\Node\\LazyFolder","type":"->"
,"args":["get",["appdata_octhjg4inrvz/js/core"]]},{"file":"/var/www/html/lib/private/Files/AppData/AppData.php","line":132,"
function":"get","class":"OC\\Files\\Node\\LazyFolder","type":"->","args":["appdata_octhjg4inrvz/js/core"]},{"file":"/var/www
/html/lib/private/Template/JSCombiner.php","line":87,"function":"getFolder","class":"OC\\Files\\AppData\\AppData","type":"->
","args":["core"]},{"file":"/var/www/html/lib/private/Template/JSResourceLocator.php","line":145,"function":"process","class
":"OC\\Template\\JSCombiner","type":"->","args":["/var/www/html","core/js/merged-template-prepend.json","core"]},{"file":"/v
ar/www/html/lib/private/Template/JSResourceLocator.php","line":75,"function":"cacheAndAppendCombineJsonIfExist","class":"OC\
\Template\\JSResourceLocator","type":"->","args":["/var/www/html","core/js/merged-template-prepend.json"]},{"file":"/var/www/html/lib/private/Template/ResourceLocator.php","line":73,"function":"doFind","class":"OC\\Template\\JSResourceLocator","type":"->","args":["core/js/merged-template-prepend"]},{"file":"/var/www/html/lib/private/TemplateLayout.php","line":377,"function":"find","class":"OC\\Template\\ResourceLocator","type":"->","args":[["core/js/common","core/js/main","core/l10n/en","core/js/files_fileinfo","core/js/files_client","And 1 more entries, set log level to debug to see all entries"]]},{"file":"/var/www/html/lib/private/TemplateLayout.php","line":222,"function":"findJavascriptFiles","class":"OC\\TemplateLayout","type":"::","args":[["core/js/common","core/js/main","core/l10n/en","core/js/files_fileinfo","core/js/files_client","And 1 more entries, set log level to debug to see all entries"]]},{"file":"/var/www/html/lib/private/legacy/OC_Template.php","line":182,"function":"__construct","class":"OC\\TemplateLayout","type":"->","args":["guest","core"]},{"file":"/var/www/html/lib/private/Template/Base.php","line":132,"function":"fetchPage","class":"OC_Template","type":"->","args":[]},{"file":"/var/www/html/lib/base.php","line":841,"function":"printPage","class":"OC\\Template\\Base","type":"->","args":[]},{"file":"/var/www/html/lib/base.php","line":1173,"function":"init","class":"OC","type":"::","args":[]},{"file":"/var/www/html/index.php","line":34,"args":["/var/www/html/lib/base.php"],"function":"require_once"}],"File":"/var/www/html/lib/private/Files/Mount/Manager.php","Line":118,"message":"App encryption threw an error during app.php load: No mount for path /.oc_key_storage existing mounts: ","exception":{},"CustomMessage":"App encryption threw an error during app.php load: No mount for path /.oc_key_storage existing mounts: "}}
I in the past deleted the encryption files in the directories, as encryption is disabled.
As some topic recommended, that it removes the message:
“Invalid private key for encryption app. Please update your private key password in your personal settings to recover access to your encrypted files.”
When I try to change the encryption password under settings/user/security, it says that password updated successfully, but if I input my same password I use for saml login, I get an internal server error - contact your administrator page and then if I refresh, I get to the the nextcloud instance, but with the message of Invalid private key quoted above…