SQL-DATABASE ERROR

Database error in WoltLab Burning Board: Link-ID == false, connect failed
mysql error: Access denied for user 'HTO01FLBUQTS'@'c4aweb29.aul.t-online.de' (using password: YES)
mysql error number: 1045
Date: 21.08.2018 @ 08:28
Script: /wbblite/memberslist.php?sid=0c0d8e259ea5ecfd4bdf8c906e3eee69
Referer: