Stucked in the main quest

I turned back to play after some months, i left the Gridania main quest in the middle of "souls gon wild" and now i can't go on the map is showing me to talk with Swethyna at the Conjurer's Guild but as I remeber I already talked to her in a cutscene and anwyay there's not such a character there at the moment...
i tired to go back and talk to everyone involved in the quest but nothing is changing, i even tried to drop it and restart but it seems it's not possible being a main quest...
Please Help me :)

Did you try talking to Soileine in the Conjurers' Guild? Generally, when you're kicked out of an instance, you need to speak to the head guild representative in order to re-enter the instance. Sometimes the Journal helps you with this, sometimes it doesn't...

Oh thank you!
I thought I talked to her but apparently I was wrong... thank you so much.

Greetings you two!

Thank you for the assistance, Mermentia! It is much appreciated!
Since you're able to move on now, the thread will be closed since it is resolved. Thanks again!