Mass Effect 1 - Door in Noveria won't open

I had to restart from a previous save. No, you don't need decryption to open that door, it should open normally.

I'm playing the second game for awhile, and it has a lot of moments whenn you walk through something, and the character stands above it, like floating, and I can't get down, so I have to load a previous save again. Because of that, I'm constantly using quick save, just for safety.

Thanks for the replies guys.