Errors on activation and doesnt display goals on pages

Such a shame. I really really like the idea and concept of this plugin and have been searching for something exactly like this for my members site. Unfortunately I received error messages upon activation. I lost all of my CSS-icons across the site whilst the plugin was activated and could not upload media files to goals in the back end. Checking the goals page that it generated it also doesnt display any of the goals I have added from the front or back end.
As I say a fantastic plugin concept and would be extremely popular if it worked ??