SQL-DATABASE ERROR

Database error in WoltLab Burning Board: Link-ID == false, connect failed
mysql error: Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)
mysql error number: 2002
Date: 29.04.2025 @ 20:00
Script: /usercp.php?action=addsubscription&threadid=5946&sid=79e4c0d8c11957ea4f406b83de61f954
Referer: