This is an unfortunate thing that can happen in SGPro 2 (and that we made considerable effort to rectify in v3). We never did figure out why this happened and we had to implement an entirely new settings system in v3. That said, you CAN get SGPro to run again, but you will lose a few setting (note that I do not mean you will lose sequences or profiles, just things like auto-stretch and the like). There are detailed steps here: