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: 02.07.2025 @ 06:48
Script: /usercp.php?action=buddy&add=245&sid=64dba8d5d6ca515096bf139ea3ccbff7
Referer: