I’m fruatrated

Can't upgrade food stands


I can't upgrade my food stands. It worked with beef (in the short quest) but with none oft the other ones.
I don't see the arrow in the right.

Device: ZTE Blade L 3
Android 4.4
(My sister has the same game and uses an iPhone, where it works fine - I guess the game looks alike on all devices).

I already Trier to delete and reinstall the game and Starter again but it didn't help.

Or can you only see the arrow when you have enough gems?
1 person has
this problem