IDE won't open after installing a library from github

Hi there, So the Arduino IDE has been working perfectly for me, up until this morning. I tried to download a library from github to play certain pitches with a buzzer. I unzipped the file, renamed it, and dragged it to my arduino Library folder. Now the IDE won't open.

What did I do wrong? is there a way to fix this or should I uninstall, re-install the IDE?

Thanks!
Ron

Sorry everyone, I figured it out. There are files in my Libray folder I needed to delete. Saw this solution elsewhere but couldn't find the files.

Cheers,
stay safe.