If you would like to disable the colorbox script you can use the following snippet by adding it to your theme’s functions.php:

/*
*	Coupon Creator Pro - Disable Colorbox Script and Style
*	Version 2.1.2
*/
add_action( 'cctor_shortcode_end', 'cctor_pro_colorbox_remove_script', 11 );
function cctor_pro_colorbox_remove_script() {
	
	if ( ! is_admin() ) {
		wp_dequeue_style('cctor_colorbox_css');		
		wp_dequeue_script('cctor_colorbox_js');
	}

}

It is not recommended you disable the script as there is an additional function added to it to resize the coupon once it pops up.