"Enter the game..." freeze

[skive]

Hello everyone! I am faced with the following problem: every time I try to connect to server, it connects, but when the "Entering the game..." window appeared, it just freezes there. I had to kill the game using the task manager. I have not touched my MTA nor GTA SA files at all and it previously worked flawlessly a few hours ago. How I can fix this problem?
My MTADiag Pastebin: https://pastebin.multitheftauto.com/5891466688

[Nico]

Your copy of Grand Theft Auto is probably incomplete or modified.
You should buy the game, or if you have already done so, reinstall or verify the integrity of the files.