Animations Not Working

So I got a set of animations from someone on commission and they work fine in the animation editor. I tried saving the keyframes to roblox and then publishing them with me as the creator but when I try to play them it doesn’t work and it just makes the character go rigid for a little bit for every animation instead of playing the animation. I’m pretty positive this is happening because of ownership issues of the animations. Does anyone know how to properly set up animations that somebody else made?

send your code where you run animation itself