Ajax call in wordpress not working for subscriber user

The problem is a conflict with the plug-in Role Scoper. Deactivating the plug-in resolves the issue. As an alternative to Role Scoper, (I do not offer this as a recommendation, simply a suggestion), there is the plug-in Members.

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)