TV Show (Folder & Filename) concept change or not?

is this structure still work?


in the past it’s show Alpha, Beta, Gamma, Stretch (each season in side)
now show only beta as fig.

Try delete lib. and add new not success, any idea please help.

this is my info
PMS Version 1.12.1.4885
Synology DS3617xs (DSM 6.1.5-15254 Update 1)

You have one folder level too much in there.
If “Focus T25” is the show name, you cannot have another subdivision below that, apart from the different seasons.
https://support.plex.tv/articles/200220687-naming-series-season-based-tv-shows/

Since all your seasons only have one episode, I think you can treat the seasons as your alpha, beta gamma…
However, it is not possible to rename a season. You must solve that with the season poster.

Also, you better have a space between Season and the number - i.e. Season 01

i just remember, i match by fanart.tv so it can recognize.
at this time can’t query from https://fanart.tv/?sect=all&s=focus+t25 (return 0 image, only paid user can see).
no problem, will go ahead as ottokerner suggest using local media file.
this is my cartoon same as focus t25 folder & filename format but return by imdb.com

Remark
Plex automatic matching season, poster, episode name if you can retrieve from agent. just understand plex concept. thank you OttoKerner help me out of problem.