Support intro
Sorry to hear you’re facing problems 
help.nextcloud.com is for home/non-enterprise users. If you’re running a business, paid support can be accessed via portal.nextcloud.com where we can ensure your business keeps running smoothly.
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:
[Thu Dec 02 08:07:33.164090 2021] [proxy_fcgi:error] [pid 9590:tid 140652906006272] [client XX.XX.XX.XX] AH01071: Got error 'Primary script unknown',
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): 22.1.1
Operating system and version (eg, Ubuntu 20.04): 20.04
Apache or nginx version (eg, Apache 2.4.25): 2.4.41
PHP version (eg, 7.4): 8.0.13
The issue you are facing:
At irregular intervals, the cloud seems to hang. I don’t get any error messages in the browser but the website is just loading. In the Apache2 error logs I get these error messages about the fcgi. After an Apache2 restart it works again for some time.
Is this the first time you’ve seen this error? (Y/N): N
The output of your Nextcloud log in Admin > Logging:
Nothing Special
The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!):
<?php
$CONFIG = array (
'instanceid' => 'ochmj5mj2dfi',
'passwordsalt' => 'XXX',
'secret' => 'XXX',
'trusted_domains' =>
array (
0 => 'XXX',
1 => 'XXX.xx',
),
'datadirectory' => '/daten/data',
'dbtype' => 'mysql',
'version' => '22.1.1.2',
'overwrite.cli.url' => 'http://XXX',
'dbname' => 'xxx',
'dbhost' => 'localhost',
'dbport' => '',
'dbtableprefix' => 'oc_',
'mysql.utf8mb4' => true,
'dbuser' => 'xxuser',
'dbpassword' => 'xxpw',
'installed' => true,
'theme' => '',
'loglevel' => 2,
'maintenance' => false,
'default_phone_region' => 'DE',
'memcache.local' => '\\OC\\Memcache\\APCu',
'mail_from_address' => 'cloud',
'mail_smtpmode' => 'smtp',
'mail_sendmailmode' => 'smtp',
'mail_domain' => 'XXX.xx',
'mail_smtpauthtype' => 'LOGIN',
'mail_smtpauth' => 1,
'mail_smtphost' => 'XXX',
'mail_smtpport' => '465',
'mail_smtpname' => 'XXX',
'mail_smtppassword' => 'XXX',
'mail_smtpsecure' => 'ssl',
'trashbin_retention_obligation' => 'auto, 2',
);
The output of your Apache/nginx/system log in /var/log/____:
[Thu Dec 02 08:07:33.164090 2021] [proxy_fcgi:error] [pid 9590:tid 140652906006272] [client XX.XX.XX.XX] AH01071: Got error 'Primary script unknown