Lightbox without plugins

Hey everyone,
I am having some trouble implementing slimbox 2.0 on my custom theme site.

I have linked the three required files in the header.php like so:

<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script type="text/javascript" src="/js/slimbox2.js"></script>
<link rel="stylesheet" href="/js/slimbox2.css" type="text/css" media="screen" />

Next, i transfer these files to the appropriate places along with images, via filezilla,

Then i use the rel=”lightbox” like this:

<p>
		<a href="<?php the_field('p1logo'); ?>" rel="lightbox" title="Beautiful, isn't it?">Click here</a> if you love star trek.
	</p>

However, the image constantly shows in it’s own url, nothing lightboxy about at all.

Check it out (in our work section, look for click here sentence at the top) https://www.entirecreative.com/stone

Thanks for any suggestion guys!