Well, I am not sure if anyone has experienced this; I could not find anything in the forum:

I wanted to continue the game with my mythologist. After loading I find myself in Epic Knossos. All my skills are there and working. The map is uncovered up to that point.

But my quest log is empty!

i have tried to go back to Helos: There I could speak to Diomedes and the quest activated. But after I had killed the Shaman (again!) Diomedes would not acknowledge it. And the quest log says: 'Go back to farmer Eumolpos'. This NPC really had an exclamation mark above his head and he thanked me and said 'take this', just what normally Diomedes would say. But in the quest log nothing happened.
When I load the game now it simply says 'Go back to farmer Eumolpos'. And there is nothing I can do.

is there a solution to this problem? Can anyone help? Or is my character lost forever?
Any help would be greatly appreciated.