Bad news is, that didn't work. The error now says that a certain file is missing, which I noticed is in a 'dmm' folder, which I don't have because I use the Nutaku version.
The good news is that I got it to work by extracting everything in the .zip file again in another folder. It runs every time now, but it's strange that it didn't the first time.
Anyway, thanks for the responses
* I guess this is staying as plain text