DarrellDeveloper

Hello.
Wordpress actually offers a very good way to load JS files (wp_enqueue_script – http://codex.ww.wp.xz.cn/Function_Reference/wp_enqueue_script )
Easy2Map makes use of this function from what I know (can’t remember right now), but the bottom line is that by itself it does not generate any errors, so either it uses this function, or it doesn’t load jQuery at all.
The issue described in the first post was actually happening because another part of the website was loading jQuery without making use of wp_enqueue_script, thus loading a duplicate jQuery, and this is what generated the error.
To check if your website is loading jQuery multiple times, open developer tools, go to the “Resources” tab, expand the “Frames” section, expand your page section, and then expand the “Scripts” section. Screenshot here
If you are seeing the gray box, as I did, it’s probably because there is some duplicate js file loaded.
You can test to see what plugin is causing the error by disabling your plugins one by one.
Keep in mind that the theme can also load a duplicate file. You can see that by going to your theme folder and checking header.php and footer.php. This is usually the place where JS files are loaded if the wp_enqueue_script function is not used.
P.S: These are not “my” maps 🙂 I am not the developer of this plugin.