Your main target is the file
data.properties (and possbly .groovy files, of course, if you made some for yourself).
Of course, you can perhaps find them in the
bin, if any.
If not, depending of your computer OS, some tools may help you recover the files :
- Stop using your computer (start it, and that's all, if possible)
- Get a recovery software (if possible, do the search and download on another computer, for example a smartphone) ; on Windows, I'm using Scavenger, but there can be better tools
- Use their recommanded recovery method