“Downloading asset failed for asset id” error shows up in game but no studio

Full error: “Downloading asset failed for asset id _________. Is the asset id correct and is the asset type “Model”?”

This glitch makes absolutely no sense to me. I have checked everything including

-Module is named MainModule
-The id is correct
-The script has no errors

I’m thinking I probably did something wrong, but why in the heck would it be working in studio, but not in game?? Please help me in any way, thanks.

Also, this was working around a month ago but then I joined to the game and it just started doing this today. I didn’t even edit anything either.