If your Hayu app keeps crashing on your device or you can't run it properly, there are a few things you can do. First, make sure your device has the latest version of ( if you have an Android device & #41; or the latest version of iOS (if you have an Apple product). Go to Settings > Apps > Hayu > Storage > Clear data/cache and restart your device. After restarting your device, try running the app again. It doesn't help, try downloading the latest version of the app from Google Play or the App Store.