Friends in my league are only members and not racing in the season.

I tried making a league with my friends and they joined and everything. But they didnt see the league race on their game, so I looked in the EA Racenet app and apparently im the only competitor and they were only members and it said below in red "Member is not enrolled in the season". So i saw the invite button in-game was still an options so i invited them like a normal lobby and hoped it would record their points but it didnt and they were erased from the standings like they werent there anyone know how to solve this?