code injection stopped working!?

I'm building a site for a client (on their own Squarespace account). I added some CSS and code injection to get image captions to show in the lightbox instead of on the gallery layout, etc. It was working well, but now none of my code or CSS seems to work.

We did just hook her site up to a new domain name. Could that break the code? I wouldn't think so.

Hard to show this because she wants her site set to private. Anyone else have a similar issue with their custom code? Thanks!

never mind, just chatted with squarespace and found out my client would have to upgrade her plan to have code injection work. This is why I usually build sites in WordPress...