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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): 21.0.1
Operating system and version (eg, Ubuntu 20.04): raspbian
Apache or nginx version (eg, Apache 2.4.25): apache 2.4.38
PHP version (eg, 7.4): 7.3
The issue you are facing: Internal server error
Is this the first time you’ve seen this error? (Y/N): Y
Steps to replicate it:
- Access nextcloud/ through browser or
- sudo -u www-data php /srv/www/nextcloud/index.php
- Step 2 results in the error below, step 1 produces no logging
The output of your Nextcloud log in Admin > Logging:
{"reqId":"4ZBmvivA03o3zG7EQ8cK","level":3,"time":"2021-04-16T12:29:32+00:00","remoteAddr":"","user":"--","app":"index","method":"","url":"--","message":{"Exception":"Exception","Message":"The requested uri() cannot be processed by the script '/srv/www/nextcloud/index.php')","Code":0,"Trace":[{"file":"/srv/www/nextcloud/lib/base.php","line":937,"function":"getRawPathInfo","class":"OC\\AppFramework\\Http\\Request","type":"->","args":[]},{"file":"/srv/www/nextcloud/index.php","line":37,"function":"handleRequest","class":"OC","type":"::","args":[]}],"File":"/srv/www/nextcloud/lib/private/AppFramework/Http/Request.php","Line":784,"CustomMessage":"--"},"userAgent":"--","version":"21.0.1.1"}
The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!):
$CONFIG = array (
'instanceid' => 'instance',
'passwordsalt' => 'salt',
'secret' => 'secret',
'trusted_domains' =>
array (
0 => 'my_ip',
),
'datadirectory' => '/srv/www/nextcloud/data',
'dbtype' => 'mysql',
'version' => '21.0.1.1',
'overwrite.cli.url' => 'http://my_ip/nextcloud',
'dbname' => 'nextcloud',
'dbhost' => 'localhost',
'dbport' => '',
'dbtableprefix' => 'oc_',
'mysql.utf8mb4' => true,
'dbuser' => 'dbuser',
'dbpassword' => 'dbpassword',
'installed' => true,
'log_level' => '2',
);
The output of your Apache/nginx/system log in /var/log/____:
nothing
Additional information: With occ I can read user info and settings. It is a clean install and has worked for 2 days. Any pointers highly appreciated.
