3D FlipBook - Pro plugin Jquery Expression Engine 2.0

Where can I find how to implement the pro version (structure) in an already excisting CMS (expression Engine 2.0). I changed the routes in 3dflipbook.min.js. But it gives me the following error:

Uncaught TypeError: Cannot set properties of undefined (setting 'workerSrc') at Object. (3dflipbook.min.js:2:2344

I also tried to find a different description on how to use the pro version. But it seems to be not available?