“ Verification Failed...The application you have selected does not exist”

There are multiple posts about this tonight. There is a server problem.

Apple - Support - System Status

 contact Apple ID Support. Based on multiple posts I have read, they may not be willing to help. See the Apple Support articles below for contact information.  

Apple ID - Official Apple Support.    

Contact Apple for help with Apple ID account security - Apple Support.   (Link doesn’t always load)  

Get Support          Work through the screens to get a chat option. 

Apple Support schedule phone call

https://twitter.com/AppleSupport.          People have posted it may take an hour or more to get a response.

The issue is showing as resolved on the Status page.

Apple - Support - System Status

People are beginning to report being able to sign in again.

I've seen a number of posts saying they were unable to get through to support at all. I suspect they are overwhelmed right now.