Greetings. It was very difficult to understand what was going on due to lack of English but there are bigger problems here. Before releasing a game you need to Beta test a game with a few other people to get feedback on what to fix and change. The biggest Game creation sin of all time is not play testing your own game for errors before you release it in any form. Here are just a few game breaking bugs that I found.
*Multiple doors that were not supposed to be accessed were openable to the outside skybox. This destroys the illusion of the whole experience.
*Dead body models that are for decoration need to have collision turned off. It plays with the player collision causing you to fall through the floor.
*The key in the bathroom before the elevator does not open the elevator. I only got past it because I know how to manipulate the files.
*The elevator was turned so that a handrail was blocking the elevator entrance.
*Before entering the theatre area (that has no theatre) the entire outside has no textures.
* I see you tried for multiple endings but one of them didn't end the game, it just played a movie then I chose the other path to end the game.
Hope this helps in future developments.