Grammar Matrix customization page down?

I’m not able to load the customization page. (It was working for me recently, though.)

I’ve tried these two links:

Does anyone know why it might be down? Thanks!

It’s been down a lot lately, I think it will eventually come back up but in the meantime, I have a copy which is the same. I will email it to you (and others interested in it can email me as well). I will try to keep it private-ish I guess because I think one reason the main page is often down is it suffers from cyber attacks.