Hello! I think there is an error with the French version of "Buy on sale decorations from Lilycove Department Store". On Box 5 it says "Box 5: (F6!np69n) [ends with seven spaces]" which, of course, doesn't make any sense as this code takes up the whole name of the box. I tried typing F6!np69n in, I managed to get the diploma to appear on my screen, but I couldn't talk to the top left corner guy. The sound effect for the clicking would play, but nothing else would happen.
(I also would like to thank you for your insane and impressive hard work! You're a blessing for the Pokémon community. :D)