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 @ 19:16
Script: /main/jgs_db.php?action=show&eintrags_id=1&katid=7&sid=42c65aa083fc9328693a0a21f341b6a2
Referer: