Too bad :-(
What else have you tried?
Have you cleared you multitasking?
Try opening and closing the appstore over and over with a mix of switching to other apps?
Perhaps mess around in setting a bit more....
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When all else fails. Back up your device to a computer and restore it. This often fixes many random errors. If it is one anyway.
Make sure you backup all settings & data. When you restore, it should look the same and all data should be there. Hopefully without the errors.