Loved it and then it stopped working!

I have been using this app for almost a year now. I love it! Then I decided to change my quick key and accidently pressed command+q. The application quitted and won’t restart. I have tried restarting my computer, deleting it and reinstalling it, and even waiting days in between. I had just downloaded the new OS system, macOS Sierra, and think that could be part of the reason it isn’t working. Please fix this! I have looked at other apps and none of them are as simple and easy to use as this. I’m looking forward to the next version, hopefully it is compatable with the new macOS Sierra. Thank you.

Shadowednluv about Lightshot Screenshot, v2.17