How can i reset a mission? - Upper torch tower

[RedWolf]

In upper torch tower after the first fight vs Cicero in this part of the map, you can use the elevator.
This goes up and you have the mission "Active both elevators".
I go first for the right one, there is a horizontal pipe you pass through it and active some buttons to make it spin in one directon to advance.
In one of the rooms i active one button, the pipe moves and stayed vertical, I pass through
and died because there is some lasers and electric walls.
Now I respawn outside this room! :'v
I cant enter again because before die the pipe stayed vertical and i need it in horizontal.

Can i restart the mission? Is there a way to reset the pipe? help please.
sorry for my bad english! :(

https://www.reddit.com/r/ForgedInShadowTorch/comments/1ik2tw5/how_can_i_reset_a_mission_upper_torch_tower/