Exchange 2013 EAC critical errors

I get the same error below when trying to do different things in the Exchange 2013 EAC.  I've tried different browsers, OSs nothing seems to work.  Always in same areas I get that error.  Not all sections do it but some do.  I can do everything through powershell, but I really wanted EAC to do mailbox moves.  This is very frustrating, has anyone seen these critical errors before?

Rich