Hi,
Thanks for the link to your page, the first video element (not the code block) has the correct link format youtube.com/watch?v= and when I test it on my site it works correctly, please see the link in the Private Content area.
Try disabling all of your plugins. If that resolves the issue, reactivate each one individually until you find the conflict.
I’m seeing these errors from your site but I don’t know what could be causing them, perhaps a plugin.

Best regards,
Mike

Hi,
On the most part that is correct, we don’t have a list it depends on the elements that you are using.

Best regards,
Mike

Hi,
Glad to hear that you have this sorted out, if you have any further questions please create a new thread and we will gladly try to help you. Thank you for using Enfold.

Best regards,
Mike

Hi,
Glad Ismael could help, if you have any further questions please create a new thread and we will gladly try to help you. Thank you for using Enfold.

Best regards,
Mike

Hi,
You would need define each one separately, there is not a way to change the setting for all elements because each element has the media query added in it’s CSS.

Best regards,
Mike

Hey Yory,
I recommend using the WordPress ▸ Tools ▸ Export ▸ All content and use the xml file to import to your new site, note that you will want your old site to still be live when you import into the new site as the new site will import the images directly from the old site.

Best regards,
Mike

Hi,
Glad to hear that you have this sorted out, if you have any further questions please create a new thread and we will gladly try to help you. Thank you for using Enfold.

Best regards,
Mike

Hi,
Glad we were able to help, if you have any further questions please create a new thread and we will gladly try to help you. Thank you for using Enfold.

Best regards,
Mike

Hi,
Glad that this have helped, I only added a new child theme.
I don’t know what was wrong with your old child theme as I didn’t see any issues in it, I believe that this points to a caching issue.
Nonetheless with the new child theme you site now doesn’t have the error, so I imagine that we close this thread then?

Best regards,
Mike

Hi,
Glad we were able to help, if you have any further questions please create a new thread and we will gladly try to help you. Thank you for using Enfold.

Best regards,
Mike

Hi,
Above you wrote that the site was created by a guy 7 years ago, are you sure that you purchased the theme, or was it him? If you had purchased it, you would see it in your Theme Forest account. You may need to purchase the theme though your account so that you will be able to update your site now and in the future.
I believe that host gator offers the staging site option, so you should ask them how to use it, and also ask them how to backup your site and restore it, so if anything goes wrong you can restore your site.
I don’t recommend using backup plugins, the webhost server backup is always better and more reliable.

Best regards,
Mike

Hi,
Try this CSS in your Enfold Theme Options ▸ General Styling ▸ Quick CSS field:

@media only screen and (max-width: 767px) {
.responsive #top #wrap_all #sub_menu1 .container {
    width: 100%;
    max-width: 100%;
}
#av-custom-submenu-1 span {
	font-size: 12px;
}
#top #av-custom-submenu-1.av-subnav-menu > li > a {
    padding: 0px 5px 0px 5px;
}
#top #sub_menu1 .av-submenu-pos-right {
    text-align: center;
}
.sticky-top {
	position:fixed!important;
	top:0!important;
	z-index:600!important;
}
}

Then add this code to the end of your child theme functions.php file in Appearance ▸ Editor:

function custom_sticky_sub_menu() { ?>
  <script>
(function($){
  var width = $(window).width();
var $stickyTop = $('#sub_menu1');
if (width <= 767) {
$stickyTop.waypoint(function(direction) {
  if (direction === 'down') {
     $stickyTop.addClass('sticky-top');
  }
  if (direction === 'up') {
     $stickyTop.removeClass('sticky-top');
  }
}, {
  offset: '0%'
});
}
})(jQuery);
</script>
  <?php
}
add_action( 'wp_footer', 'custom_sticky_sub_menu', 99 );

Then clear your caching plugin and browser, please note that testing with iPads & iPhones can be hard to clear the cache, often you need to also clear the history to fully purge the cache, following these steps for Safari and note Step 4 where you will Clear the History.
In my test with makes the sub-menu sticky on mobile ans reduces the size of the menu itme so they fit better, feel free to adjust to suit.
Please ensure to copy the code from the forum and not an email notification so the symbols are not converted.

Best regards,
Mike

Hi,
Glad that this helped, I expect that this is the only step needed, while you are creating your site I recommend leaving the any caching plugins and the file merging disable, as it is not needed. Once you are done creating the site you can enable again and I would not expect any further issues, but if you do just let us know and we could take a look.
You can include your site login or private info in the Private Content area below the main input box:

but only for threads that you start, if you want to reply to someone elses thread adding your info will be seen by the thread starter.

Best regards,
Mike

Hey karacafer,
You can add your icon with css, first you would determine the menu ID for the menu item, in this example it is #menu-item-3059
then use that ID in this css and the URL to your icon:

#menu-item-3059 span.avia-menu-text:before {
  content: url(https://img.icons8.com/color/17/wordpress.png);
    display: inline;
    padding-right: 10px;
    vertical-align: sub;
}

This is how this example worked:

Then repeat this for each menu item.

Best regards,
Mike

Hi,
Glad we were able to help, if you have any further questions please create a new thread and we will gladly try to help you. Thank you for using Enfold.

Best regards,
Mike