Error while trying to use GM9Megascript

[flowingmelons101]

I region changed my 3DS, but I want to undo it to return it back to the original owner because I'd rather have eShop access on a United States model. One of the steps was to use GM9Megascript. When I try to use it, line 003, if not find $[GM9 IN] NULL turns red and the touch/bottom screen says:

0:/gm9/scripts/GM9Megascript.gm9
line 3: too many arguments
i fonot find $[GM9IN] NULL

( to continue)

I've tried to replace the gm9 folder with the latest version.