This error presents either a blue or black screen when opening the Disney+ app on a Samsung TV. Samsung has updated the app to disallow deletion and reinstall, which used to fix the problem, now the fix is much more severe. To solve this issue, you will need to reset the Smart Hub. Make sure you have all your apps logins in mind, because this will restart everything in your TV.
RESETTING THE SMART HUB
Remember that this troubleshooting will restart all the settings in your TV so you will need to reload and relog in to your apps.