Sign Quest Problem!! /omg

[FindTheWay]

The witch lets me in now, I killed all the monsters except for dark illusion and when I took out a quarter of his hp I got warped to niff(probably because I took too long). Then I talked to the witch and she sent me to the room where Serin is. Serin took the potion. I got sent to niff and I went back to the witch and she says"[Kirkena] Hmmm...? Where are all the vouchers I've lent to you? Please retrieve them all before coming back to me." The problem is Spire gave all the vouchers(witches medal) to the witch already. So I'm stuck please help. Any suggestions is good. Oh, and is there a save point npc in geffenia. If so please tell.