Can't buy gold bars

Crill13

Whenever I click the amount I want to buy the screen darkens but the pop-up won't come up for me to buy

KingsPinn

If the app is failing to load properly then I recommend trying the steps here in this thread. Try them and then try again to purchase something: 

https://care.king.com/en/candy-crush-saga/cant-get-your-games-to-load-on-facebook-check-this-out