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: 28.03.2025 @ 04:13
Script: /register.php?sid=85ae2691e7551fcbf4ef747438fe93da
Referer: