The problem on Illium (Mass Effect 2)

Help solve the problem, ran into her on illium, when we approach the Secretary for the Penny, talking to her, like all the rules, then when I go to the Penny, I can't talk to her, she stupidly stands in front of her and a hologram black any and all. There under her office is another door, leading somewhere, as soon as you open it, walk a couple of meters, no stop working exe. Then I loaded the save once landed(on the planet), so now with me and the merchant says as Liara, the action does not occur, although to download she said. The entire game passed without a single error or departure. Tell me if there is a solution. Much has purchased and improved a whole heap of jobs has passed and the team is almost assembled. Don't really want to re-take.
PLEASE DO NOT DELETE THE THREAD AT LEAST A COUPLE OF DAYS, FOR ANSWER, I HAVE NOT YET FOUND! I would be grateful.