I've subscribed and tested it out on single player. Texture worked just fine. I posted the piano to my collection for the server, and i installed the other content that is required to make it work on the server.

It works on the server, but the piano texture is just a big ERROR. I've tried to remove the addon from the subscribed collection to the server. But that didn't work either.

Can someone please explain to me how to install it properly to the server, i might have done something wrong.