SQL-DATABASE ERROR

Database error in WoltLab Burning Board (): Link-ID == false, connect failed
mysql error: User 'keywo843_walo' has exceeded the 'max_user_connections' resource (current value: 10)
mysql error number: 1226
mysql version: unknown
php version: 5.6.36
Date: 24.06.2018 @ 22:01
Script: /attachment.php?attachmentid=38
Referer: