Failed to Launch Editor

I went into my project and I tried to delete the Kite Demo(as I didn’t need it) but the editor kept crashing. I then decided to go into my files and delete the Kite Demo directly from the folder. Now when I try to open my project it says “Failed to launch editor.” Is there anyway to fix this? I do have a 4.7 backup but if I use it I will lose a lot of progress.