To fix this issue:

  1. Log out of the app by going to More > Logout.
  2. Clear the SIPlay App Data and Cache.
Clearing App Data and Cache: The steps to do this vary between devices and their operating systems. If you're unsure of how to clear the app data and cache for your device, a simple search using the search engine of your choosing (Google, Bing, etc) should be able to help. Simply search "How to Clear App Data and Cache on [insert name of phone/operating system].