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 @ 08:08
Script: /register.php?sid=45fdf75711c5616990b918291bcd0224
Referer: