Hello! A Happy Place is a Windows Executable File, which Xbox systems will not run even though both Windows and Xbox are owned by Microsoft. Thanks for asking!
That console print isn't actually relevant to the game's startup, all of that information is related to the Engine rather than the Game and isn't vital. Some issues the engine has aren't preventable unfortunately, and that one is uniquely annoying. A Happy Place has a long first launch, if it launches once it'll launch much quicker upon subsequent starts. It takes at least a minute, if that doesn't work then force closing the window and trying again until it launches always ends up eventually working but it needs somewhere between a minute or two per attempt. The issue is related to A Happy Place being the biggest, if not one of the biggest, blender games. Some players have seen successful launches after having restarted their computer or closing other programs. Hopefully it ends up working, sorry for the inconvenience!
Hello! A Happy Place takes a few minutes to start up for the first time, players usually speed up the process by retrying the startup multiple times or by waiting for a few minutes. The long initial wait time is due to the Blender Game Engine having problems with loading assets on launch. The warning message you included is also a BGE issue but does not prevent the game from opening or effect the game in any way.
