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: 25.04.2024 @ 02:40
Script: /main/jgs_db.php?action=show&eintrags_id=3&katid=8&sid=e73434b3dafd9af9491833ea77d82f71
Referer: