Paramount+ app version

Trying to watch episodes on paramount+.  Kee running into an error msg.  Paramount support says they identified and fixed the bug in version 4.98.0.  Even after unplugging my xumo box, resetting wifi (recommended by paramount), and “updating all apps” in xumo settings, I still hit the same issue because it’s still running version 4.97.0.  How do I upgrade to the latest version to get past this error?