Turn Off Internet Connection:
Before launching the game, completely disconnect your internet connection. This includes unplugging your ethernet cable or turning off Wi-Fi.

Launch the Game:
Start Hello Neighbor. Make sure the game loads completely without any interruptions.

Reconnect to the Internet:
Once the game has fully loaded, press Alt + Tab to minimize the game.
Re-enable your internet connection by plugging the cable back in or turning on Wi-Fi.

Hello Neighbor attempts to connect to Mixer, a streaming service that used to allow integration with player profiles. Since Mixer is no longer operational or supported, the game's attempt to connect can cause it to crash. By following this workaround, you can avoid the crash caused by the failed connection attempt.

I hope this guide helps you enjoy the game without any issues. If it did, please consider giving a reward in the form of Steam points. Thank you, and happy gaming!