There are many reasons why this happens on your computer. You can try the following methods to solve it:
1. Graphics card problem. Download the official version of win7, 64-bit catalyst driver from the official website of the graphics card driver. Install.
2. It may be that the online game to be run is incompatible with win7 64-bit system. You can download compatible games.
3. There is a problem with the game software itself. It is recommended to go to the official website and use the downloader that comes with the official website, download the client and then install it and try running it.