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 @ 08:35
Script: /wbb/search.php?searchid=316671&sid=c9f6b34b0f4862afab55d7abfe8709c7&page=2
Referer: http://delftseschaaksite.nl/wbb/search.php?searchid=316671&sid=c9f6b34b0f4862afab55d7abfe8709c7&page=2