Can’t activate booster?!?!

[Glennysue]

I have never been able to activate boosters. How do I do it?

[LuvHayDay]

Tap on the booster you want to activate. You’ll get a pop-up with two buttons that say “Activate” and “Trash.” Tap the “Activate” button. If that doesn’t work, you could try writing in-game support and describing the problem—and if possible, sending a screenshot showing what’s wrong.

[WussyPuss]

Do bear in mind that if your booster storage is full, you cannot activate boosters.

you must resolve the unstored boosters by deleting them, swapping them or storing them with diamonds