SQL-DATABASE ERROR

Database error in WoltLab Burning Board (): cannot use database db215097779
mysql error: Access denied for user: 'dbo215097779@%' to database 'db215097779'
mysql error number: 1044
mysql version: 4.0.27--maxd0-log
php version: 5.2.17
Date: 18.06.2013 @ 23:03
Script: /aiboard/board.php?boardid=52
Referer: