Based on the information provided, it is difficult to determine the exact cause of the issue. However, here are some steps you can try to troubleshoot the issue:
Check if your computer meets the system requirements for Supreme Commander Forged Alliance (SCFA). If your system doesn't meet the requirements, it could cause the game to crash.
Make sure your graphics drivers and DirectX are up to date. Outdated drivers can cause compatibility issues and lead to crashes.
Try running the game in compatibility mode for Windows 7 or 8, as some users have reported this has fixed similar issues.
Disable any background applications or services that may be interfering with the game. For example, antivirus software or overlay programs like Discord or Steam.
Try deleting the game's settings file located in My Documents\My Games\Gas Powered Games\Supreme Commander Forged Alliance. This will reset all of the game's settings
Regards,
Rachel Gomez