NEED HELP ASAP PLEASE!!! COURSE PRESS PRO

Ugggg! I love this plugin and hate it all at the same time!
I just put it on a subdomain and apparently there is no longer an option for anyone to enroll!!!!
Ahhhh! This really defeats the purpose of even having this plugin and I've just wasted 6 hours with it before figuring it out!
I have an old version of it on a site I'm going to be migrating that works fine but don't know how I can get it on this new subdomain instead of the funky new version.
Can someone please advise?? I'm about to do a major program launch and this is a fatal error for me.
Thank you