Before you try any of these steps, please check that your device is supported.
Check your connection
Make sure you have signal on your phone and that you're online.
If you're having an issue while using mobile data, try connecting to a WiFi network.
Uninstall and reinstall the app
The majority of the technical glitches we see can be solved by a fresh install. Doing this will also ensure that you're using the latest version of the app.
Clear your app cache (Android only)
If you're not sure how to do this, please read the following external website.
Any content you've downloaded will be deleted when reinstalling the app or clearing your app cache. Make sure to re-download before trying to use them offline again.