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: 18.04.2024 @ 03:19
Script: /main/jgs_galerie_userbilder.php?userid=642&bildid=256&sid=02bea5b88b9d6691a6ea7af7f9c1fac3
Referer: