You will receive this error if you try to play an online game that is on a course you do not currently have installed on your computer.   You can review Course Information at http://www.p3proswing.com/Courses.   This will tell you which Course Pack contains the course you are looking for.   You can then purchase Course Packs online at http://www.p3proswing.com or you can contact the Sales Department at 1-877-737-7646 (US Toll Free Number) or 1-207-824-7403.   They are also available by email at sales@p3proswing.com.