That likely means the show is not matched. Looking at your screenshot you have Sailor Moon (1992) and then another folder named Sailor Moon (1992) and then a Season 1 folder where the episodes are. You should only have one top level folder for the show and the season folders in there. Your tv library should be pointing at the folder that has your show folders.
Fix the structure and then Plex Dance the files. You could use the fix match option, but it’s better to clean up the structure and let plex match it properly.
