The game crashes after a certain time. (The Elder Scrolls 5: Skyrim)

Hello. I recently downloaded a pirated version of Skyrim by xatab. I go to the game play. And after about 10-15 minutes the game suddenly crashes. There is a window that the application is not responding. And that's all. I have not installed mod Highres Textures, and only add-ons Hearthfire, Dragonborn and Dawnguard. By the way, I forgot to say. Version Skyrim: Special Edition. Who knows, write please.