Stuck at "Kill the priests guardian"

[Comrade Johnny]

So I fought the guardian, happily punched it and all the enemies in the room disappeared. But the fight is still not over somehow, it still says I have to kill it and there are no ways out. Any suggestion? The fight earlier already bugged when i glorykilled two enemies rapidly after each other

[KristopherVector]

You've gone down to the room with two Doom Hunters?

[bleach]

go down the big hole