Problem with Group Finder in MassPlanner!

I just bought MassPlanner and I'm still trying to figure everything about it out... currently I am trying to find some groups using the Group Finder tool for Facebook, the only problems is that everytime I press Find Groups... it simply doesn't find any, not even 1. I tried to play a little with the filter, tried every possibility, still doesn't find anything.

Can anyone help me out if you know a solution? Thanks a lot!

All I do is set maximum and minimum amount of people and put in the keywords. It's all working fine.