Menu not toggling after changing foundation.js -> foundation.min. Other questions, different issue.

I looked at all other relevant questions. I believe this is broken down into 2 parts potentially.

1: Strange Issue that I have which is completely separate to any of the lesson and no-one else seems to have reported it.

I have this warning at the top of my site: Warning: preg_match() expects parameter 2 to be string, array given in C:\xampp\htdocs\localwp.com\wp-includes\class.wp-scripts.php on line 151

Warning: strpos() expects parameter 1 to be string, array given in C:\xampp\htdocs\localwp.com\wp-includes\class.wp-scripts.php on line 151

Warning: preg_match() expects parameter 2 to be string, array given in C:\xampp\htdocs\localwp.com\wp-includes\class.wp-scripts.php on line 151

Warning: strpos() expects parameter 1 to be string, array given in C:\xampp\htdocs\localwp.com\wp-includes\class.wp-scripts.php on line 151

Now, we have not touched or looked at any of those files, but I opened it to look at line 151

if ( ! preg_match( '|^(https?:)?//|', $src ) && ! ( $this->content_url && 0 === strpos( $src, $this->content_url ) ) ) { $src = $this->base_url . $src; }

So, naturally, I tried changing it to:

if ( ! preg_match( '|^(https?:)?//|', '$src' ) && ! ( $this->content_url && 0 === strpos( '$src', $this->content_url ) ) ) { $src = $this->base_url . $src; }

The warnings have now gone, but I don't think this is correct?

In addition, the menu doesn't work regardless of changing the above.

MAIN ISSUE:

Followed all the steps religiously, does not appear to be any errors or mistakes in my code, everything else working perfectly. (I noticed other people with spelling mistakes / syntax missing etc...)

However, the menu does not work. In the console I get the error that it's failing to load: http://localhost/localwp.comArray?ver=1

Looking in the sources, I see the line highlighted: <script type='text/javascript' src='http://localhost/localwp.comArray?ver=1'></script>

It appears on line 34 (is also duplicated on line 35??)

I have checked my siteURL in both WP Settings and Database phpMyAdmin and both point correctly to localhost/localwp.com

At a loss and a bit frustrated, been searching by myself for a couple of hours on the web, but not getting anywhere! Have also changed a few things (app.js) as per other users suggestions, but to no avail and I feel like I'm maybe just making things worse without being able to easily put them back! Any help much obliged and welcome :)

Thanks in advance!

PS: Of course, it could be (most likely) a spelling/syntax error from me that I'm being blind too, but I don't think so, so if you need to see a specific section of code, please ask so I don't post everything here and waste everyone's time looking through every line!

Thanks again!