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: 15.07.2025 @ 22:59
Script: /usercp.php?action=addsubscription&threadid=6701&sid=fad2387a0efc9a19895f71250d03a9a2
Referer: