/hoai broke my game?

[Himura Kenshin]

I don't know much about homunculi. The NPC assistant told me the rules and mentioned something about needing to type /hoai. Well after I got my homunculus I did that, cause I thought that was what I was supposed to do. Well I closed out the game, and came back later, now whenever I go on my alchemist character I cannot play at all, I see a black screen and error popups stating there's a missing ai file or something. I tried to find that "config.exe" file, but I don't have one. D:
Can someone please help me?