Marseille to Paris reservations - from which sites?

Hello,

Eurail.com website says Marseille to Paris TGV train reservations can be done on https://www.b-europe.com/, however, that site does not seem to allow Eurail passes to be used for Marseille to Paris train reservations. Strangely, it allows ticket purchases for that sector.

Below is a screenshot when I try to enter “Marseille” -- it doesn’t even recognise.

URL: https://www.b-europe.com/EN/Booking/Pass#TravelWish

Are there any websites that I can book this reservation?