evreytime i join a server my game crashing

How to build walls inside walls? Sometimes I see in some houses people, for example, put two different windows literally one inside the other, or a ladder right into the window as in the screenshot in the link. Is this some kind of bug or cheat?...

меня зовут леня мне 15 лет веселый жду напарника поиграть бываю часто с удовольствием

Hi , I've been having problems with the game for two days. When joining any server, the game suddenly crashes to the desktop. 2 days ago everything was working normally. I reinstalled the game, updated all drivers and integrity of game files. nothing helped. the console does not display any error either. the game just suddenly turns off. sometimes when combining prefabs, sometimes under character rebirth. please help ....

Dead game ??