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 @ 00:52
Script: /wbb/thread.php?threadid=3700&page=1&sid=6e156d87ccc64a5ea1f81e09c4b39a0b
Referer: http://delftseschaaksite.nl/wbb/thread.php?threadid=3700&page=1&sid=6e156d87ccc64a5ea1f81e09c4b39a0b