Will not sign

I am using a Patrionics ACR39U Smart Card Reader with my Mac. Using my smart card any where else on my Mac works fine, but when I try to digital sign on Reader I get an error message, "Adobe Acrobat could not find any new digital IDs. If your digital ID is on a hardware token, please make sure it is plugged in and the token interface is properly configured. Contact your system administrator for further assistance." The drivers are fully updated.

I have looked at other forums and have not been able to find the solution.