Im using Pligg 9.6 and i want to make a backup of my database.
When I click the backup link in the admin panel, I get the following message:

_QUERY_ERROR_Access denied for user 'pligguser'@'%' to database 'pliggdb'

Pligguser has the following permissions:
SELECT, INSERT, UPDATE, DELETE, CREATE, DROP

could somebody please tell me what other permissions must this user have in order to be able to backup?