Setting your device to Airplane mode, then deactivating Airplane mode can usually fix the problem.
Otherwise, you can clear the Google Play Services and Store Caches.
- Go to Settings > Apps > Click on Google Play Services > Storage > Clear Cache.
- Repeat the same steps for the Google Play Store app.
- Restart your device and relaunch the Google Play app to reinstall Knights of the Old Republic.
If the above steps don't work, or you have any questions, please reach out to us and we'll be happy to help!