big controller template disappear after another control surface crash!

hi, I often have crashes on control surface in Mac, it s really annoying and this time the big template I was working on totally disappear after the crash any idea how I can restore it please? I worked on it fo hours! as I have 112 pots 64 button64 leds 24 encoders with bush button!
that was working I was able to install my script and now template is gone and I can t modify my script!!!