This is mostly due to the graphics card. If you can open the original game: this may be a graphics card driver problem. Your driver may have installed an unstable new version, or your graphics card driver is out of date and needs to be updated or replaced. You can also try to create a shortcut for the game, then edit its properties and add "-dxd11" or "-dxd12" in "Target" to let the game start with the changed shader.