SQL-DATABASE ERROR

Database error in WoltLab Burning Board (): Link-ID == false, connect failed
mysql error: Access denied for user 'web6'@'localhost' (using password: YES)
mysql error number: 1045
mysql version: unknown
php version: 5.6.40-68+0~20230902.80+debian11~1.gbpa2012b
Date: 24.04.2024 @ 07:09
Script: /main/jgs_galerie.php?sid=9d4c4fccf48d55bea0bce9b6c4c80b5b
Referer: