From what i know, this error occurs when the Destiny 2 game files have been corrupted and need to be repaired or verified. I reinstalled the game on Steam 12 plus times after trying over 20 game verifications. Each time i either get to the patching screen and it crashes, or the game launches and i crash upon moving around in game. Ive even went as far as to installing a new version of windows. Not too sure where to go from here.