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: 17.04.2024 @ 01:13
Script: /main/jgs_galerie_ecard.php?action=senden&bildid=249&page=24&bilduserid=1&sid=325789ac6d6712269a8be2b47e9e5967
Referer: