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 @ 07:36
Script: /wbb/search.php?searchid=314922&sid=12f85a33aab7bc47151056eb49dcc3c4&page=3
Referer: http://delftseschaaksite.nl/wbb/search.php?searchid=314922&sid=12f85a33aab7bc47151056eb49dcc3c4&page=3