If you're seeing an 'Error 905' or are prompted that you 'May not have purchased the app' it's typically due to a network cache issue with the Google Play storefront.
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.
Still having download issues? Please don’t hesitate to reach out to our support team: https://support.aspyr.com/hc/en-us/requests/new