Hey, so if anyone is reading the comments and can't get this method to work, try this
I can confirm it works initially, I'll come back in a day or so to determine if it's a permanent solution or not. There's instructions in english in the youtube description that is quite detailed. Basically you install iGG 7, copy the iGameGuardian.app folder out, uninstall, install iGG 6 cracked, copy the eng.proj folder and iGGNinja files from the iGG 7 folder into the currently installed one then reboot. It also suggests using the "iGameGuardian Bypass 6" Flex crack, but I'm not sure if it's necessary.