She says that until you beat the lich king. If you read the whole message it says to beat the witch and get the Blessing of Ishtar. If you haven't done that yet, then go to Orech and get the blessing. You may need to donate some money to be able to access it.I may softlocked myself with Raphaelle questchain. I killed the Witch before even talking to her, then i saw that i can ask her about the lich king, she says i need to defeat the witch first, but i already did. And she keeps telling me that, i cannot progress cos' i cant fight the witch again. I need to reload an earlier save or i can fix it via console/cheat? Thanks in advance.
There shouldn't be anything locking you out of the quest besides beating the witch and getting the blessing. If you really want to be sure, open the console and type:
witch_completed
It should be true, because if it's false you'd be able to fight the witch again.