Hi @THUNDER2
Welcome to community!
Thanks for posting your experience. Since the Pandora app on your TV lives on the TV itself, I would try the following steps to to clear cache and data to see if it will help.
The steps may be slightly different depending on your model. If you find that these steps don't quite fit, I would refer to the user's manual for specific steps.
On the supplied remote control, press the HOME button.
Select the Settings Gear icon ⚙️
Follow the steps according to your TV menu:
Select Apps → See all apps → Show system apps.
Select Apps.
Under System apps, select Pandora.
Select Clear cache, then select Ok.
If the issue still occurs, move on to the next step.
Select Clear data, then select Ok.
If displayed, select CLEAR ALL DATA, and then Ok
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