Can't use the workshop in Outpost Zimonja

[Regallag]

I'm doing the "Mercer Safehouse" quest for the railroad and it sent me to Outpost Zimonja. I killed every enemy in sight, then tried to use the workshop only to be given a message telling me I have to kill all the enemies before I can use it. I looked around and saw nothing. I killed the raider and turrets in the nearby trailer and it still won't work. I blew up the generator and it won't work. I quit the game and reloaded and it won't work. I used the "killall" console command and it still won't work. Can someone help me make this thing work?