Why can't I see the teams option?

Hello!

I started playing Candy Crush Friends Saga a few days ago, i'm on level 100 now and still don't have the option of joining or creating a team. The green button that should appear in the bottom right side of the screen isn't there. Also three of my friends started the same time as me, two of them got the team button amd one didn't. I tried to search for a solution on here or at least a reason but couldn't find anything. Can someone please help me? I wanna join a team with my friends.

Thanks!