The solution to this problem is very simple:
Replace in db_prefix.php
wp_register_style('dbStyle',plugins_url('css/style.css',__FILE__));
wp_enqueue_style('dbStyle');
wp_register_script('jquery.validate',plugins_url('js/jquery.validate.min.js',__FILE__),array('jquery'), false, false);
wp_enqueue_script('jquery.validate');
wp_register_script('util',plugins_url('js/util.js',__FILE__),array('jquery'), false, false);
wp_enqueue_script('util');
by
function dbprefix_insertFrontEndScripts(){
wp_register_style('dbStyle',plugins_url('css/style.css',__FILE__));
wp_enqueue_style('dbStyle');
wp_register_script('jquery.validate',plugins_url('js/jquery.validate.min.js',__FILE__),array('jquery'), false, false);
wp_enqueue_script('jquery.validate');
wp_register_script('util',plugins_url('js/util.js',__FILE__),array('jquery'), false, false);
wp_enqueue_script('util');
}
add_action('wp_enqueue_scripts','dbprefix_insertFrontEndScripts');
Save and the error is gone
The problems where bigger than anticipated
The solution is still simple. Download Change DB Prefix 1.3 and install. This version is an improvement of the prior version. Gets rid of all the bugs and improves on the success and error handling.
Thanks, will check and update.