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: 23.04.2024 @ 13:04
Script: /main/jgs_galerie_userbilder.php?kategorie=8&bildid=249&page=10&sid=e24a7eb4da8704d23a4ffd5f3aba6e3d
Referer: