Can't buy gems :/

Hi Guys,

a few hours ago i wanted to buy some Gems but unfortunately i was running an app to get free ingame purchases
(I know that this doesnt work on CoC and will never work because it has to sync with the server).

Now the boxes in the Shop are grey and it says: "pending transaction".

Can anyone help me? I tried uninstalling the app and the game but nothing works...

And sorry for my bad english im from Germany.

Thank you!

Altarate