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 @ 06:52
Script: /wbb/profile.php?userid=145&sid=f5d9e18ae86ea9cbf6f59da85913ec8f
Referer: http://delftseschaaksite.nl/wbb/profile.php?userid=145&sid=f5d9e18ae86ea9cbf6f59da85913ec8f