"Gallery" not working

[knomadd]

I typically upload my photos to an album in the "Gallery" linked up above in the menu bar, next to User CP, but every time I've tried to get to it over the last two days I get this:

Fatal error: Call to undefined function render_navbar_template() in /home/admin69/public_html/gallery/header-inc.php on line 166

I messaged Liz about this, but I'm not sure if she is the only person that can look into this. Is there anyone else on here that can take a look at this and see if it can be fixed easily?

I know there are other ways to upload, so please don't post about how I can do it this way or that. I'm just looking to see if someone can get the gallery working again.