SQL-DATABASE ERROR

Database error in WoltLab Burning Board (): Link-ID == false, connect failed
mysql error: Access denied for user 'PPGClansql1'@'localhost' (using password: YES)
mysql error number: 1045
mysql version: unknown
php version: 5.6.40
Date: 28.04.2024 @ 17:00
Script: /board.php?boardid=34&sid=96927d59082bd2b6805ed330d39cd746
Referer: http://mainboard.ppg-clan.de/board.php?boardid=34&sid=96927d59082bd2b6805ed330d39cd746