Hi Koraykupe,

the problem is in the UserToolbar extension,

file: backend/classes/buttons/module.php

line:
require_once(JPATH_LIBRARIES.DS.'joomla'.DS.'application'.DS.'module'.DS.'helper.php');

This is the wrong way to import helper classes from the Joomla libraries, and it conflicts with MetaMod Pro.

This line should be replaced with:

jimport("joomla.application.module.helper");


That's the most obvious thing I can see in the UserToolbar, from just looking at the code. Try fixing that, and see it it helps. I think it probably will

Cheers,
Stephen

I installed User Toolbar to see what's going on - it's nice, isn't it!

Ok here's all you have to do: you need to ensure that the "System - Metamod Pro" plugin is BEFORE the "System - UserToolbar (uBar)" plugin, in the Plugin Manager in Joomla.

On my list of plugins, I put MetaMod Pro at position -50 so that when I install other extensions, MetaMod Pro will always be first on the list.

The edit that I suggested above is still a good idea, but I tested MetaMod Pro with and without that edit to uBar, and it worked both ways, as long as MetaMod Pro is first in the list of plugins.

I trust that will help,
Stephen