Looking for help solving TV Show Metadata not working

I’m having this exact same issue on Synology DSM 6.2 (xpenology). I have tried clearing out the plug-in support caches, and even completely removing the plugin along with the plex folders. I’ve adjusted the permissions, and the plex user has full control over my TV shows directory. I’m hoping that somebody can help out with this.

Edit:
This forum post may have shed some light on this issue. Looks like there were some changes to the TVDB API.