I cannot deactivate the Add-On I put on my realm.

Everytime that I try to deactivate this Add-On, it doesn't work. Originally, the Add-On was the “Animations and Stuff” Add-On (I think thats what it was called), I tried to get rid of it on my Xbox. After that didn't work, I tried getting rid of it on my Laptop, where I originally bought and applied the Add-On. Thats when the missing texture appeared and it wouldn't get rid of it. Finally I tried getting rid of it on my phone, and recorded it for you, it still won't work. The Add-On still works in game, but I dont want it applied anymore. Please help!