Depending on the mobile device you have, most of the performance issues (loading, blocking, options that disappear or synchronizing) can be solved by:
1. Checking your Internet access:
- Making sure your device is connected to Wi-Fi, 3G, 4G, or LTE.
- If you're playing over a Wi-Fi connection, making sure the router is turned on. Also, try not to play too far away from him so as not to lose the signal.
2. Rebooting your device.
3. Making sure you have the latest version of the app, installed from the Google Play Store.
4. Shutting unnecessary background apps down.
5. Restarting the app by shutting it down:
- Go to Settings>Apps>Manage Apps.
- Select the app and tap on "Shut down".
- Go back to the home page and restart the game's app.
6. If the problem persists, uninstall and reinstall the app. To do this, you must follow these steps:
- Go to Settings>Apps>Manage Apps.
- Select the app and tap on "Uninstall"
- Go to the Google Play Store to search for the app and reinstall it.
- Open the app.
- Log back in using your email address.
Bear in mind that uninstalling the app won't cause you to lose your information, statistics and progress, since this information is linked to your email. You will also not be recharged for apps previously purchased from the same Google Play account.