If you use mods, a "Fatal Error" often indicates that a mod is outdated or incompatible with the current game version. : Located in Ace Combat 7\Game\Content\Paks\ Remove mods one by one
The fatal error in Ace Combat 7 typically occurs when the game fails to launch or crashes during gameplay, displaying an error message that reads: ace combat 7 fatal error
If the quick fixes didn't work, we need to look at what is running next to Ace Combat 7. If you use mods, a "Fatal Error" often
For persistent fatal errors on launch, edit the engine configuration: If you use mods