Stuck, main quest missing

Date & Time: 24.01.19 ; 18h30
Frequency: once
World name: Zodiark
Character name: Joane Johnson
NPC name: Minfilia
Class/Level: Bard 51
Party or solo: Solo

Hello all, So here's my problem : I just recently started to play again and I transfered my character to Zodiark to be able to play with a friend. I've looked and looked but I can't find my main quest anywhere. My journal lists that my last accomplished quest is : The ultimate weapon. I should then be able to take '' the price of principles'' wich should start in the walking sands but Minfilia isn't even there. Any idea?

Do you not have big red and white MSQ tracker on your UI telling you where to find the next MSQ?