How to break banker 444 walls

Guys, can you help me? My game has been stopped for days because I got stuck at banker444, I managed to open the door with a password at the bottom of the banker where there is the post game, plus the walls that he says someone tried to break, I can't get past there, I know I have I have to find the woman who appears at the beginning of the game, but the last time I saw her was when I helped her get a black power cube, after that I never saw her again, then since I got to that part of the banker where I have to break the wall to face the nurse, I can't get past the wall, I can't break it, is anyone there to help?