Not familiar with the app but you can always try enabling "Exploit protection compatibility mode" in the app info. This disables some extra security layers baked into GOS, but sometimes help with poorly programmed apps to work properly (that's my understanding of it), more Information over here.
Another reason for apps crashing is that Sandboxed Google Play Services are not configured correctly. Did you install them before installing your app and did you give network permission to all of them? More information here.
Edit: Of course you installed Play Services before the app since you installed from Play Store, silly me. But the rest should be worth looking at.