I have CoursePress Pro but when trying to add the 3rd I am not able to.

This is the message I am getting

While CoursePress is suitable for offering a few courses, you may have bigger goals for your site. CoursePress Pro takes the features you love from CoursePress and unlocks the ability to create an unlimited number of courses. And get 12 payment gateways making it even easier to accept payments for your premium content.

I have tried to rename the coursepress plugin folder but then i get an error 200. How does one add a 3rd course?

Cheers,
Simon