A photo got stock and now it won’t work

A photo got stock and now it won’t work

I put a new cartridge and took the first photo so the cover comes up and you can start taking photos, but the cover got stuck and I had to take off the catridge, and add a new one, but now it won’t take pictures. Please help, I have less than a year with the camera and haven’t use it that much. I already tried changing the batteries, it didn’t work.