Quest bugged

Dear Path of Exile Team,

When I started the quest Abandoned Prison on the Frankfurt server with my character Lilisar, I fought against the final boss. During the fight, he cast a black circle that killed me. However, just before I died, I managed to kill the boss with a ballista. I saw the items drop, but now the quest is not completed.

It still says that I need to defeat the boss, but he no longer spawns for me. Could you please help me with this issue?

Thank you very much in advance.

Best regards,
Lilisar

fixed... i need to restart the map