Undo region change errors on modded 3DS

Question

I region changed my 3DS a little bit ago and I want to undo it to get eShop access. I also can't update games like Super Smash Bros. to save as well. While running GM9 MegaScript I get the error on line 003 that says:

0:/gm9/scripts/GM9MegaScript.gm9
line 3: too many arguments
if not find $[GM9IN] NULL
("A" to continue)

And line 003 reads:

if not find $[GM9IN] NULL

I've tried replacing the gm9 folder with the newest one, but it doesn't work. I can't uninstall the CFW because it will brick my system.