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example
Or for longer, use three backticks above and below the code snippet:
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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): 26.0.0
Operating system and version (eg, Ubuntu 20.04): Alpine Linux v3.17
Apache or nginx version (eg, Apache 2.4.25): Apache 2.4.56
PHP version (eg, 7.4): 8.1
The issue you are facing:
Upgraded my server from 25.0.4 to 26.0.0, now a user is facing 500 when accessing files.
Is this the first time you’ve seen this error? (Y/N): Y
On a VM I cloned the server with backup (nextcloud programs, data and mariadb dump), I upgraded with the same procedure but the error did not appear.
Steps to replicate it:
- Standard steps upgrading 25.0.4 to 26.0.0
- Start apache2 service
- Use browser to login to an account I created
later on. - The login appears normal, but if I click on any files that’s not preview-able in the recommendation (txt files are okay), I ended up with a 500 message. Clicking on “Files” on the top left corner also resulted the same.
- Log in as admin users worked mostly fine but I cannot access the User panel without infinite loading and triggering “An error occurred during the request. Unable to proceed.”.
The output of your Nextcloud log in Admin > Logging:
[index] Error: Exception: Cannot assign float to property OC\Files\Storage\Wrapper\Quota::$quota of type ?int in file '/var/www/nextcloud/lib/private/Files/Storage/Wrapper/Quota.php' line 68 at <<closure>>
0. /var/www/nextcloud/lib/private/AppFramework/App.php line 183
OC\AppFramework\Http\Dispatcher->dispatch()
1. /var/www/nextcloud/lib/private/Route/Router.php line 315
OC\AppFramework\App::main()
2. /var/www/nextcloud/lib/base.php line 1055
OC\Route\Router->match()
3. /var/www/nextcloud/index.php line 36
OC::handleRequest()
Caused by:
TypeError: Cannot assign float to property OC\Files\Storage\Wrapper\Quota::$quota of type ?int at <<closure>>
0. /var/www/nextcloud/lib/private/Files/Storage/Wrapper/Quota.php line 75
OC\Files\Storage\Wrapper\Quota->getQuota()
1. /var/www/nextcloud/lib/private/Files/Storage/Wrapper/Quota.php line 172
OC\Files\Storage\Wrapper\Quota->hasQuota()
2. /var/www/nextcloud/lib/private/Files/Storage/Wrapper/Wrapper.php line 298
OC\Files\Storage\Wrapper\Quota->fopen()
3. /var/www/nextcloud/lib/private/Files/View.php line 1180
OC\Files\Storage\Wrapper\Wrapper->fopen()
4. /var/www/nextcloud/lib/private/Files/View.php line 1006
OC\Files\View->basicOperation()
5. /var/www/nextcloud/lib/private/Files/Node/File.php line 114
OC\Files\View->fopen()
6. /var/www/nextcloud/lib/private/Preview/TXT.php line 59
OC\Files\Node\File->fopen()
7. /var/www/nextcloud/lib/private/Preview/GeneratorHelper.php line 64
OC\Preview\TXT->getThumbnail()
8. /var/www/nextcloud/lib/private/Preview/Generator.php line 440
OC\Preview\GeneratorHelper->getThumbnail()
9. /var/www/nextcloud/lib/private/Preview/Generator.php line 164
OC\Preview\Generator->getMaxPreview()
10. /var/www/nextcloud/lib/private/Preview/Generator.php line 116
OC\Preview\Generator->generatePreviews()
11. /var/www/nextcloud/lib/private/PreviewManager.php line 192
OC\Preview\Generator->getPreview()
12. /var/www/nextcloud/core/Controller/PreviewController.php line 144
OC\PreviewManager->getPreview()
13. /var/www/nextcloud/core/Controller/PreviewController.php line 113
OC\Core\Controller\PreviewController->fetchPreview()
14. /var/www/nextcloud/lib/private/AppFramework/Http/Dispatcher.php line 230
OC\Core\Controller\PreviewController->getPreviewByFileId()
15. /var/www/nextcloud/lib/private/AppFramework/Http/Dispatcher.php line 137
OC\AppFramework\Http\Dispatcher->executeController()
16. /var/www/nextcloud/lib/private/AppFramework/App.php line 183
OC\AppFramework\Http\Dispatcher->dispatch()
17. /var/www/nextcloud/lib/private/Route/Router.php line 315
OC\AppFramework\App::main()
18. /var/www/nextcloud/lib/base.php line 1055
OC\Route\Router->match()
19. /var/www/nextcloud/index.php line 36
OC::handleRequest()
GET /index.php/core/preview?fileId=1809&x=250&y=250
from 192.168.122.1 by Work at 2023-03-31T15:11:52+00:00
The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!):
<?php
$CONFIG = array (
'instanceid' => '1ebfb62c42a4',
'passwordsalt' => '30a8d4ea5f4713695fe3cb82abcf4004',
'secret' => '184cd8ecc7bc3039b9629330054c7e36',
'trusted_domains' =>
array (
0 => '127.0.0.1',
1 => '192.168.1.201',
),
'datadirectory' => '/ncdata',
'dbtype' => 'mysql',
'version' => '26.0.0.11',
'overwrite.cli.url' => 'http://127.0.0.1',
'dbname' => 'nextcloud',
'dbhost' => 'localhost',
'dbport' => '',
'dbtableprefix' => 'oc_',
'mysql.utf8mb4' => true,
'dbuser' => 'nextcloud',
'dbpassword' => '65aa64bdac7aa95ea3b3',
'installed' => true,
'maintenance_window_start' => 16,
'memcache.distributed' => '\\OC\\Memcache\\Redis',
'memcache.locking' => '\\OC\\Memcache\\Redis',
'memcache.local' => '\\OC\\Memcache\\Redis',
'redis' =>
array (
'host' => '/run/redis/redis.sock',
'port' => 0,
),
'trusted_proxies' =>
array (
0 => '192.168.1.100',
),
'skeletondirectory' => '',
'theme' => '',
'loglevel' => 2,
'maintenance' => false,
);
The output of your Apache/nginx/system log in /var/log/____:
error.log
[Fri Mar 31 14:47:59.135854 2023] [mpm_prefork:notice] [pid 2332] AH00169: caught SIGTERM, shutting down
[Fri Mar 31 15:09:53.766944 2023] [lbmethod_heartbeat:notice] [pid 1983] AH02282: No slotmem from mod_heartmonitor
[Fri Mar 31 15:09:53.768193 2023] [mpm_prefork:notice] [pid 1983] AH00163: Apache/2.4.56 (Unix) PHP/8.1.17 configured -- resuming normal operations
[Fri Mar 31 15:09:53.768210 2023] [core:notice] [pid 1983] AH00094: Command line: '/usr/sbin/httpd -d /var/www -f /etc/apache2/httpd.conf'
access.log
192.168.122.1 - - [31/Mar/2023:15:16:25 +0000] "GET /index.php/f/2219 HTTP/1.1" 303 - "-" "Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Firefox/102.0"
192.168.122.1 - - [31/Mar/2023:15:16:25 +0000] "GET /index.php/apps/files/?dir=/Documents/Work/files.pptx&openfile=2219&scrollto=files.pptx HTTP/1.1" 500 4726 "-" "Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Firefox/102.0"
192.168.122.1 - - [31/Mar/2023:15:16:25 +0000] "GET /dist/core-common.js?v=085db5fb-0 HTTP/1.1" 200 15071827 "-" "Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Firefox/102.0"
Output of nextcloud.log. Mostly duplicate entries of:
{"reqId":"ALpzhdLZ029SYQXpFyUA","level":3,"time":"2023-03-31T15:16:25+00:00","remoteAddr":"192.168.122.1","user":"Work","app":"index","method":"GET","url":"/index.php/apps/files/?dir=/Documents/Work/file.pptx&openfile=2219&scrollto=file.pptx","message":"Cannot assign float to property OC\\Files\\Storage\\Wrapper\\Quota::$quota of type ?int in file '/var/www/nextcloud/lib/private/Files/Storage/Wrapper/Quota.php' line 68","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Firefox/102.0","version":"26.0.0.11","exception":{"Exception":"Exception","Message":"Cannot assign float to property OC\\Files\\Storage\\Wrapper\\Quota::$quota of type ?int in file '/var/www/nextcloud/lib/private/Files/Storage/Wrapper/Quota.php' line 68","Code":0,"Trace":[{"file":"/var/www/nextcloud/lib/private/AppFramework/App.php","line":183,"function":"dispatch","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->"},{"file":"/var/www/nextcloud/lib/private/Route/Router.php","line":315,"function":"main","class":"OC\\AppFramework\\App","type":"::"},{"file":"/var/www/nextcloud/lib/base.php","line":1055,"function":"match","class":"OC\\Route\\Router","type":"->"},{"file":"/var/www/nextcloud/index.php","line":36,"function":"handleRequest","class":"OC","type":"::"}],"File":"/var/www/nextcloud/lib/private/AppFramework/Http/Dispatcher.php","Line":169,"Previous":{"Exception":"TypeError","Message":"Cannot assign float to property OC\\Files\\Storage\\Wrapper\\Quota::$quota of type ?int","Code":0,"Trace":[{"function":"getQuota","class":"OC\\Files\\Storage\\Wrapper\\Quota","type":"->"},{"file":"/var/www/nextcloud/lib/private/Files/Storage/Wrapper/Wrapper.php","line":524,"function":"call_user_func_array"},{"file":"/var/www/nextcloud/lib/private/legacy/OC_Helper.php","line":522,"function":"__call","class":"OC\\Files\\Storage\\Wrapper\\Wrapper","type":"->"},{"file":"/var/www/nextcloud/apps/files/lib/Controller/ViewController.php","line":142,"function":"getStorageInfo","class":"OC_Helper","type":"::"},{"file":"/var/www/nextcloud/apps/files/lib/Controller/ViewController.php","line":243,"function":"getStorageInfo","class":"OCA\\Files\\Controller\\ViewController","type":"->"},{"file":"/var/www/nextcloud/lib/private/AppFramework/Http/Dispatcher.php","line":230,"function":"index","class":"OCA\\Files\\Controller\\ViewController","type":"->"},{"file":"/var/www/nextcloud/lib/private/AppFramework/Http/Dispatcher.php","line":137,"function":"executeController","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->"},{"file":"/var/www/nextcloud/lib/private/AppFramework/App.php","line":183,"function":"dispatch","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->"},{"file":"/var/www/nextcloud/lib/private/Route/Router.php","line":315,"function":"main","class":"OC\\AppFramework\\App","type":"::"},{"file":"/var/www/nextcloud/lib/base.php","line":1055,"function":"match","class":"OC\\Route\\Router","type":"->"},{"file":"/var/www/nextcloud/index.php","line":36,"function":"handleRequest","class":"OC","type":"::"}],"File":"/var/www/nextcloud/lib/private/Files/Storage/Wrapper/Quota.php","Line":68},"CustomMessage":"--"}}