Thx for comments so far. I will try rebooting and see if that fixes the App Store. I'm ok with deleting the apps that were on the ph and reinstalling if I can get App Store working. I don't think my husband will let me reboot to new but I might be able to convince him if he thinks it'll fix the problem with the other users apple I'd. If his phone is jailbrokn and he just clicks on reset to factory will it wreck the phone or should he UNjailbreak first? Or just back up in iTunes first? Sorry I'm really new to iPhones so trying to understand what some of you mean. Thanks
Do not.... Do not... Do NOT push that button. I'm disappointed the others that posted didn't say anything.
That reset all button will cause far more problems than it'll fix.
You don't need to restore to fix the apps permissions. Just delete and re-download. Once they're installed, they want the original user's information. I'll often do the work on friends and family phones. Once in a while they'll get an app from my laptop. They just delete and re-install and it's back to normal. The restore is like amputating an arm to fix a papercut if the problem is solely the appleid.
Did a reboot give any different results? If so, what changed?
If you're going to restore at any point, I'd recommend a fresh restore. Skip the backup. Just restore. iCloud saves your contacts for you. This is the cleanest way to get back to factory. But, that's only if you care to restore.
As the others mentioned, there's the semi-restore people have been trying. That's found mixed reviews. Another possible option is searching for ilex rat in Cydia. It will perform a semi-restore as well. These are both options to try if you're giving up on finding other fixes for the store.