AEGP Plugin CINEWARE not found (5027::12)

AEGP Plugin CINEWARE SceneLayer: No Cinema 4D Installation was found (5027::12)

but I was using it this morning. How can I get it back, or reinstall it?

I am new to using C4D Lite, and have some other start-up questions (buttons don't do the right thing, there must be some initialization step I'm missing). A little help there would also be appreciated.

I am a Creative Cloud subscriber.

Thanks in advance.