I have not used 3D OC Options myself… but when I tried to look it up on the wiki it redirects to the plugin 3D Objects Counter. This plugin seems to work well, and one of the developers is active here on the Forum (@chalkie666). Does it have the same/similar functionality that you would need for your analysis?
If you really need to use 3D OC Options … then perhaps you need to go back in time and use an ‘older’ installation of Fiji/ImageJ (check the Downloads page of the ImageJ wiki for older versions)?
Sorry this doesn’t directly answer your question… Perhaps others on the Forum can provide better advise/guidance, but I hope it helps a bit.