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: 16.04.2024 @ 10:45
Script: /main/misc.php?action=imprint&sid=30f6436d6fd5b3e9b1b34ebde94ccc70
Referer: