Zombies Run keeps crashing

Hi,
My iPad Mini running iOS 9.3.2 and the Zombies Run app are not really getting along.
The app keeps crashing when I attempt to open it. VoiceOver is unresponsive when opening the app, it only tells me that it is switching my iPad's rotation.
What should I do? I have already rebooted my device, that didn't work. Then I took it up a step and tried resetting it. Still nothing.
Thanks for the help in advance.
Tunmi