In my game there is a script that changes the animations of the players character. It works in roblox studio, but not the actual game. I tried doing what this tutorial was doing https://www.youtube.com/watch?v=8fS8Ly6SAok but this is where I encountered the problem. I then tried the scripts on the developer hub Using Animations | Documentation - Roblox Creator Hub and i encountered the same problems.
additional information: It was a group animation, i tried it on a different account, and it errored
You mentioned it was a group animation, is the place you are trying to run the animation on a group place? Group animations can only be played in places owned by the group