No such file or directory

Dolibarr has started to display an error whenever i try to access my login page.
This happened after i had installed mySQL in order to be able to work with WordPress, however it deleted some other mySQL files which were already on the system (that’s also why i don’t understand why WordPress wouldn’t work, cause i already had mySQL installed.) Now all i get is: DolibarrHasDetectedError. with the following lines:

DolibarrHasDetectedError.
InformationToHelpDiagnose:
Date: 20201117094147
Dolibarr: 12.0.3 - https://www.dolibarr.org
PHP: 7.4.3
Server: Apache/2.4.41 (Ubuntu)
OS: Linux *** etc
UserAgent: *** etc

RequestedUrl: /dolibarr/htdocs/
Referer:
MenuManager:

DatabaseTypeManager: mysqli
RequestLastAccessInError: ErrorNoRequestInError
ReturnCodeLastAccessInError: ErrorNoRequestInError
InformationLastAccessInError: ErrorNoRequestInError

Message: host=localhost, port=3306, user=admin, databasename=dolibarr, No such file or directory.

All the other Dolibarr file are still there, i just have no clue why it says this now. Does anyone know how to possibly fix this? I don’t have a backup so i can’t simply reinstall.

No backup is no repair. Maybe a bin folder on your server. Have you ever backuped in Dolibarr? /documents/admin/backup ?