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 @ 02:08
Script: /wbb/search.php?action=user&userid=34&sid=7b838f974bca4df0c4c766a0e10dc7b7
Referer: