By same problem, do you mean you can’t see the Movies & TV in the navigation menu (on the left)? If so, then:
Are they under “More” (bottom of the left nav), then under “Plex”? See Edit the Navigation Sidebar from this support article:
https://support.plex.tv/articles/customizing-the-apps/
Or do you mean that when you start Plex, you get an error:
“We were unable to load your Plex Home settings”
in which case, see this post (the fix also works for Samsung TVs):
