How did i die mid origin

Hey guys im an aran lvl 278 ,56k stat ,500%boss hard lotus is an easy boss for me.

I made a carry today for a friend and on 3rd phase mid origin appearntly a demolisher hit my character in the middle of ORIGIN and KIlled me, making no damage what so ever to the boss. did it happen to other fellow arans or perheps other 6th job origins, lemme know in the comments!

What reasons could that be of?