Xumo streaming box not working after move

Hello, I just moved house and kept my previous Xumo box. But after plugging it in, I'm stuck at a screen with only 2 options: "link your account" and "settings". I did "link you account" (multiple times even) but nothing else is showing up. What can I do?

If I look at my Xfinity account, it says I have more than one account (one from my old address, one for the new one). And if go in my new address account, it says "Xumo is no longer available"