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: 03.07.2025 @ 07:17
Script: /register.php?sid=6e4b8c04be54f2cdb30e37dfba791fb6
Referer: