Project is gone after trying to install unoffical apk

Ok so I was on YouTube and saw a vid on how to get FlipaClip premium for free. I pressed it and then it said to download a app and add FlipaClip after that it didn’t work so I deleted app but it deleted FlipaClip with it!! I own a iPad 6th generation I checked and in bugs nobody has had issues with this please find a way to restore it and I’m so so sorry if getting it for free was against rules the vid said it was fine if u do that and FlipaClip was ok with it idk why I believed it but I hope I didn’t break rules I’m so so sorry of if I did please restore my projects somehow I don’t think I had my email attached to it please find a way to restore it I’m so sorry if I broke any rules I didn’t know them please if you do restore my movies and projects I would be so grateful thank you