I'm having the same issue as @WolfFreak106 aside from the fact that I have the Quest 2 and had recently received it. I had gotten it delivered on the 4th of March. I had been playing VRChat since I had gotten the Quest 2. VRChat had stopped working on March 6th. Two days after I had gotten the Quest. Now it doesn't load and crashes every time I try to open it. I haven't found a solution to this problem either. Please help.
I was having the same problem. The fix is to go into vr chat permissions and ALLOW microphone access. You probably have it disabled. It works after this. If you don’t want to speak in the game, there is a push to talk button so you can speak when you want and in the menu you can disable your mic.