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 @ 21:58
Script: /main/misc.php?action=imprint&sid=cd3a45a66796154bc7a7a1ca8af05bc0
Referer: