Problem with insert the achievements script in my game...

Hello again

I saw this really good script called achievements and I wanted to get it work in my game too.
First here's the demo : www.lumeniagame.de/images/problem/Achievements.exe
When I start a new game this occurs

And when I start a saved game a method problem is displayed...


I use many scripts so I really dunno where's the problem and I tried it with a clean
version of Mog_Menu and no error occurred.
So the menu is not the problem...

Is there a variable that is used in this script?
Perhaps I'm using it already and that's the problem.
Hope you can help again

*push*

we need more info, what version of the game and script you are using, what your script says on that line (as sometimes it is different, and that is the problem) etc, etc...