Fluidbox is not working on Liebling theme

Themes
1

Hello,

I had integrated Fluidbox as image gallery for a nice display to users in my previous theme (Casper), but it doesn’t work with Liebling theme.
I tried several things to make it works but without success for the moment.

Code is following and is in Code Injection, Site footer :

<script async src="https://cdn.jsdelivr.net/gh/Torqu3Wr3nch/fluidbox-ghost-blog-plugin@0.1.1a/fluidbox-ghost-blog-plugin.min.js"></script>
<script>
    window.fluidboxGhostConfig = {
      theme: 'light', // Options: light, dark, image-backdrop, hsla(262, 100%, 82%, 0.6)
      showCaption: true, // Sets whether to capture the caption and show it below the image when expanded
    }
</script>

If someone has an idea to help me reproduce in my new theme, it should be great.

Thanks.