Adobe PDF wont open and attach in Adobe sign

This issue just started for me today.

I am trying to send a PDF for electronic signature using Adobe Sign to our client.

Once attaching it and then choosing to select where to sign, date, etc., I get a message that says"

"The document you are trying to load requires Adobe Reader 8 or higher.  You may not have Adobe Reader installed on your viewing environment or may not be properly confifgured to use Adobe reader."

then it gives a link for more information which is useless.

My husband uses the same pdf files and he has no issues getting his to go through. AS stated this just started on my computer today.

I have changed nothing, computer is up to date with windows and microsoft, and I even uninstalled and re-installed Adobe reader.

I also contacted 3 different parties on support both by phone and online chat and none of them have been able to fix this issue.

Does anyone know how to resolve this?