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: 29.03.2024 @ 01:30
Script: /main/jgs_galerie_userbilder.php?userid=1&bildid=250&sid=23cce6e3fec8cc8b5cf93cbe34ed028b
Referer: