Well, to try to see what that was, I opened the updated newest version of game on my (I admit it, OLD and indestructible perfect test bed) phone (after having cleared data and cache).

Strangely enough, when I opened it, it didn't know my team anymore. I had to enter name & password. Huh.

But the notifications buttons all joy for me, so I do not know what to say. The only other thing to try is kill the app completely and re-install. If THAT doesn't work, you'll need to ask Nordeus Support or possibly someone else know a trick?