I'm sorry to hear you are having trouble with Ninja Shadowbox.
Ok, I see what the problem is. The needed scripts are not loaded. Like you already mentioned.
But what I don't understand is that I see two files from Ninja Shadowbox loaded in the header.
This is not good, of course, there should be many more needed to make Ninja Shadowbox run properly.
I have no solid clue and I was not able to replicate your issue.
Please, try to do the following:
- You've made sure Ninja Shadowbox is in a valid module position. That's good. Make also sure that Ninja Shadowbox is active on all pages. You can manage this in the module settings under Menu Assignment (bottom left).
- Download a fresh package, uninstall your current one and re-install the new package.
See if one or more suggestions from above helps.
Let me know how it goes.