This is a bug really easy to resolve, don't open that damn editor! lol Now if you want your game to work, just re-install over your old folder the game, replacing old files, don't worry your save will be safe. Greg shouldn't share the editor/PBS and all as they don't need to the game, but to mod it, after the game is compiled they don't need.
I found this on pokemon essentials wiki... (even if It's great too see where the game is at the moment as I download the game every 2-3 beta and I don't always see what got updated. lol)
Anyway great work Greg, love it.