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 @ 01:40
Script: /wbb/search.php?searchid=296545&sid=f1d14ba6d1aeb3b08d39c4a9adcfc96b&page=2
Referer: http://www.delftseschaaksite.nl/wbb/search.php?searchid=296545&sid=f1d14ba6d1aeb3b08d39c4a9adcfc96b&page=2