If your app displays a network error message, try the following:
- Turn the Wi-Fi off by tapping Settings > Wi-Fi > Off.
- Turn off Airplane Mode by tapping Settings > Airplane Mode > Off.
- Turn Cellular Data on by tapping Settings App > Wireless & Networks (header) > More… > Mobile Networks > Data Enabled.
If these steps don’t solve the issue, try restarting your phone by pressing and holding the power button and selecting Power Off or Restart.