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 @ 00:18
Script: /wbb/misc.php?action=viewip&postid=21011&sid=6a0d8cb2f27569f47a875aeca65bcfbf
Referer: http://www.delftseschaaksite.nl/wbb/misc.php?action=viewip&postid=21011&sid=6a0d8cb2f27569f47a875aeca65bcfbf