I'm in the Mass Fusion Building for a quest and I've already gotten all of the parts needed (beryllium agitator). But when I try and go up through the elevaor my key card doesn't work and it says I have to end the lockdown. I've killed all of the enemies in the building but the lockdown won't end. I've looked at all of my saves and they are all from during the time of which I've been having this issue so the only save I could use would be about 1 month old and I was wondering if there is any way out of this or if I'm just stuck having to replay the game from that point?