Avia layout builder not loading

Hello,
I am using Enfold 4.2.6 version theme. I am facing Avia layout builder not loading issue.
Below are my site details.
https://reflectit.dk/project/asamt1/
To solve this issue I have done following things.

1. Added below code in function.php
function modify_jquery() {
if (!is_admin()) {
wp_deregister_script(‘jquery’);
wp_register_script(‘jquery’, ‘https://code.jquery.com/jquery-1.11.3.min.js’);
wp_enqueue_script(‘jquery’);
}
}
add_action(‘init’, ‘modify_jquery’);

2.Increased memory limit.
Added below function in wp-config.php
define( ‘WP_MEMORY_LIMIT’, ‘256M’ );

I didn’t installed any other plugin (Akismet Anti-Spam and Hello Dolly defaults plugin are there)

Still I am facing issue.

Please help me.

Thanks.