I am using Adobe Reader with paid up service through May 2015. When I attempt to convert a file from PDF or to PDF, I get the message "An error occured while trying to access the service. What do I need to do to access the service paid for?

I am using Adobe Reader with paid up service through May 2015.  When I attempt to convert a file either to PDF or from PDF, I get the error message, "An error occurred while trying to access the service".  What do I need to do to get access to the service I have paid for?