Plex on OSMC RC3

Can some1 point me to a working repository for the Plex addon. I used to have it working on Kodi on my desktop, but I cannot remember where I got it from. I have installed the Plexmbc on my pi running OSMC however, I cannot get it to launch, including installing the Helper. Script always fails. I put in my account info under configuration as well and set the IP for my server.

I don’t have a clue about Plex, but using search function I found

Continuing the discussion from Plex addon for OSMC?: