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 @ 07:04
Script: /wbb/report.php?postid=7690&sid=28af371c59b5e55b88ce51d8b6575f89
Referer: