Keeps seeing error when trying to watch any apps

[Kels21]

Tried to watch an app on sky glass but keeps saying error . I've turned off tv like it says but still error comes up . I've had trouble since Christmas tv not coming on at all for hours then freezing I don't know what's going on 

[lettice]

Which app is this and what exactly is the error?

Would be wise to do an app refresh as below;

1. Press Home on your Sky remote, then select Settings
2. Press System management then Resets and updates and finally Refresh apps.
3. You'll see a message that says, 'Your apps are being refreshed'.
4. Press Dismiss to return to normal viewing.

The refresh can take 24 hours to complete

Also, have a read of this help article;

https://www.sky.com/help/sky-tv/sky-tv-glass/fixing-a-problem-sky-glass/fixing-sky-glass-tv-apps/art...