[Edit: Found the activation documentation, such a complicated licensing system for a 20 bucks plugin.. ]
I've bought the Easy Ivy plugin yesterday, I tried it on both c4d r21 (windows) and r20 (Mac OS) and the plugin fails to show-up. I can see a license window popping up for half a second and disappearing after that when I launch the software, but that's pretty much it.
I've tried both plugins folder without any additional luck.
Any pointers would be welcome