library update

so i have my server running on a PC connected to my TV. that PC is shared on the network so i can access and edit my Media library. i then use my PS4 for the Plex app to watch my movies, TV, etc…

i added some movies and TV series to the corresponding folders on the PC, and it never updated so i don’t have them in my Media library on my PS4 Plex app.

what am i missing, as far as updating my media library whenever i add media to my library?

** shared on the network to access my library from my laptop.