Rendering Glitch need help!

[u/Mysterious_Main_8490]

I'm trying to make an animation and I've completed it, but for some reason it renders out all glitchy and blocky. I was originally trying to get rid of the background color (I already deleted background layer and made it transparent idk why it's doing that either), but I think i misclicked something and now all my renders look like this. Is there any way to fix this????