Hard locked at the end of the campaign

Hi, i finished the campaign but as i kill the cuachic vault bosses, a bug occurs.

one of the bosses stayed at 1hp and keeped attacking me, i could still summon doryani and that what i did, i went throught doryani's dialogue and nothing happened

i cant do maps, there is no quest on the right side of my screen, i tried to kill the bosses again but the option to summon doryani doesnt appear.

i cant finish the campaign and my character is now stuck and cant go to maps.

Pls fix and thanks