SQL-DATABASE ERROR

Database error in WoltLab Burning Board (): cannot use database usr_web73_9
mysql error: Access denied for user 'web73'@'localhost' to database 'usr_web73_9'
mysql error number: 1044
mysql version: 5.0.95
php version: 5.3.28
Date: 18.03.2019 @ 16:54
Script: /board/blog_details.php?buserid=1&eintrag=13
Referer: