3 days ago, I tried to fixed VRChat for hours and it won't prevail because there's the new update called "Easy-Anti Cheat". The next day, I figured it out because  EccentricCreature34 and AnnaLou on the VRChat Discord server helped me to fixed VRChat. Then, I used the Windows update and I restart my hard drive in about a few moments. And then, on July 28th, the VRChat game finally works and now I can hang out with my friends (especially  Reptu).

P.S.
I know that it's very late journal post. but I would like say this. Thank you so much.  EccentricCreature34 for helping me how I fixed it on the other day and now I could play VRChat anytime want. This is going to be the best birthday week ever. ^^