App stuck on unknown state?

Hello.I just got my new iPhone 7 and transfered all purchases from the old iPhone manually from the store.The thing is,that one app (Hearthstone) is stuck on the downloading(?) state.There is no icon on my screen just the square button (stop) in the Appstore instead of the "Install" button. Pressing it does nothing and I also tried many common solutions ,like reset,sign out,change network,clear setting etc, everything but restore. Anyone knows about this problem? Thanks in regard.