Trouble in Skyrim - Kill the leader of Arkngthamz - Bug

[Goiyon]

I have run into the following issue: For my second quest in the Companions series "Trouble in Skyrim" I have been sent to the Dwemer ruins of Arkngthamz (which is also the site of the Tonal Lock) to kill its leader. However, solving the Tonal Lock puzzle with only one error in the sequence, I didn't spring all the traps, which has now become a problem.

The leader I have to kill appears to be the Dwemer Centurion that is inactive and stuck behind the centre gate, which I can only assume to be one of the later traps in the Tonal Lock puzzle sequence. I am no longer able to reuse the Tonal Resonators however, and I can't find an alternative way to release and activate the Dwemer Centurion.

What I've tried to do is to disable the gate through the console. While this does release and activate the Dwemer Centurion, I was unable to damage it. It was actively engaging and damaging me, but nothing I did to it could hit it. I think that using the console on the gate messed up the Dwemer Centurion's hitbox in some way.

Having no recent save prior of solving the Tonal Lock puzzle, does anyone have an idea to alleviate the issue? Is this a known bug?

Thanks in advance.

[Ihateeverybody]

Target it in console and type Kill.

If that doesn't work, try moving someplace with alot of open space and using console (moveto player)(Two words moveto and player) Be ready to be hit.