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: 29.02.2024 @ 00:17
Script: /main/profile.php?userid=1&sid=5aadc00193340a9de3c0efeb907b7d5a
Referer: