Server Error "Access token header not provided." Anyone else experience this?

I am getting a Server Error when trying to Send a Document for Signature.  When I click Send to begin the process AdobeSign does not recognize the emails put in and will not add the file.  The Server Error I am getting is:

We encountered an error while processing your request. We apologize for the inconvenience. Please reload the page and try again.

If you continue to encounter this error contact our customer support.

Access token header not provided.

One of my Users had this happen a couple of weeks ago when I was out and now I am having the same issue but cannot send out any documents for signature now!

I am getting very frustrated at this point as I spent 2 hours trying to find some help or a solution yesterday and ended up calling the Customer Support number only to find out that Adobe Sign is not one of the applications you can actually "speak" to someone about.

Does anyone know how to fix?