My script to build and insert the code isn't compatible with the newer versions of devkitARM (the updater, unsurprisingly, always installs the latest one, currently r51). You'll need to find r45 from someone (you can ask on the Discord, and someone should be able to send it to you).
I have preliminary work to get my stuff compatible with the newest versions, but it's not done or in the repos yet. Sorry for the inconvenience.