App continually pending - Profiles no longer working

New Contributor III

I started off trying to get Google Books on some of our ipads.  After leaving it an hour of continually saying 'pending' I tried to force one of them to take it by resetting it.  Since then the iPad will not take any profiles I'm sending and whilst it says that it is 'supervised' it has all the initially installed apps/home screen etc. and I can't send it any commands.

Looking at the profile it says that the * certificate expired 2 days ago so I don't know if this is anything to do with it.

We have only been on a few weeks so nothing should have expired yet!

I can't even get the one I reset back to a 'usable' state.  When I reset them before they simply took the profile I was pushing.

What do I do to get it back?