what does phone with a line through it mean?

I recently got a Vivofit 4 (after my 3's clasp broke and I lost it...) I have followed all the steps in the set up guide and so far so good, except... instead of the weather widget display, I get a green phone with a red line through it. I haven't been able to find what this means anywhere, let alone how to fix it, and preferably get the weather to work... can anyone please help me? I could assume it means it can't connect to my phone? but I haven't had any issues with auto or manually syncing with connect. so not sure.
any help would be appreciated, thanks in advance.