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: 21.05.2024 @ 00:16
Script: /wbb/misc.php?action=viewip&postid=16631&sid=474ff36c5ece07dbecf2a4dc132409ca
Referer: