Forum Discussion
You know you're not "Reporting" it now, right? You're simply informing other players that you encountered this problem, and are asking (hoping) one of us might have some idea how to correct it. The AHQ is for player-to-player technical self-help and game-play discussions. Other than the "Community Managers", almost no EA staff ever post hear, and the studio developers even less than that. (Read: "Never".)
That said, all of the gate's blocking posts will move (in pairs) as you turn the correct controls, and you will hear "grinding". But until you've positioned things so that all of them are completely retracted at the same time, the door will not open.
See a video of one solution here:
Let us know if that works. (And if not, what platform you're on.)