tymax

Child theme, if u update the theme them it will get overwritten but the child theme wont

Proper way as you have there at the end of ur post is to enqueue the script. This make sure things like jQuery that some scripts rely on loads first, if u used jQuery and added the script to the header instead of enqueue it wouldn’t work.

Easiest was is to just and those scripts to the bottom of the footer. You can just use <script> tag.

No that’s fine you can just leave it as is.

and I assume this is basically what you template looks like?

<?php get_header(); /* Template Name: MyTemplate */

if(isset($_POST)) {
print_r($_POST);
}

get_footer(); ?>

That should work fine so I am not sure what is happening, be interesting to know what is causing it. Delete get_header() and see what happens

have a look here they seemed to fix it replacing the wp-includes/functions.php file

here

Really no plugins for tables? the main reason would be all new websites now should be responsive and tables would break that. You can make responsive tables but there is more too it. So flexible divs are more common. If you can use the DIV then try something like perfect-columns plugin..

sounds like the .php file in the action cannot be found if I understand correctly…