Thank you for that information, it looks like the issue is that the project is failing to generate project files due to some missing files in the project. Can you ensure that you have the plugins that are being mentioned enabled? The ones mentioned seem to be OnlineSubsystem and ExampleDeviceProfileSelector.
There are also some warnings that shouldn’t cause this to fail but would be good to heed, such as this one telling you that your cast will always fail due to a mismatched class:
[Compiler BP_Audio] Warning 'Slider' does not inherit from 'BP Audio' ( K2Node_DynamicCast_5 would always fail).
There’s also this error which leads me to believe that you have Github source control enabled, but the project isn’t part of a Github repository. Can you try disabling the source control, at least temporarily?
LogSourceControl:Error: '../../../../../../Users//Documents/Unreal Projects/LurkingInTheShadows/' is not part of a Git repository