The Sony Crackle app no longer supports Android 5.0 and older versions. To continue streaming Sony Crackle please upgrade your phone or tablet to the latest Android app in the market. Here is some more information on the version history: https://en.wikipedia.org/wiki/Android_version_history
For more information regarding how to upgrade your Android operating system see this site: https://www.techadvisor.co.uk/how-to/google-android/update-android-3614890/
The Sony Crackle app can be downloaded through the Google Play Store and the Amazon App Store. The latest Sony Crackle app available is Sony Crackle 6.0.