Can you explain what you think is incorrect ?

This series has more than 1 Season ... Now that i can found there is 6 season at least Season 1 - Sanctuary Arc (73 Episode) Season 2 - Asgard Arc (26 Episode) Season 3 - Poseidon Arc (15 Episode) Season 4 - Hades Chapter: Sanctuary (13 Episode) Season 5 - Hades Chapter: Inferno (12 Episode) Season 6 - Hades Chapter: Elysion (6 Episode)

Reference : https://thetvdb.com/series/saint-seiya#seasons

This series was broadcasted in Japan as one single season with continuous episode numbering.

If you want it in a split form, you can use an episode group.

TVDB isn't an official source.