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: 13.07.2025 @ 11:19
Script: /register.php?sid=ae2c64e0c8349f10cbd3dddb19143baa
Referer: