Hi there. Stone's disconnection was actually the topic of a comic that I had planned called Heart of Stone. Here's a link: https://popgoes-pizzeria.fandom.com/wiki/POPGOES:_Heart_of_Stone

Essentially, because Stone was connected to WeaselWare but was accessible from the outside of the pizzeria, there were some incidents where vandals hacked into the pizzeria via Stone's endoskeleton, causing a lot of mess that Fritz had to deal with. Stone was disconnected to prevent future incidents like this.