Hi, when I login in Notifications I see blank page. Users ok no problem.

This is the message in php debug:

This page cannot be displayed due to an internal error.

If you are the administrator of this site, please visit the XOOPS Troubleshooting Page for assistance.

Helpful infomation you should provide while asking for assistance:

Error [Xoops]: Handler does not exist
Module: system
Name: ads in file xoops\include\functions.php line 616


What's wrong?

Thanks in advance.

sounds like you deleted the database,