Ajax call in wordpress not working for subscriber user in front site

Question

i have simple wordpress form to add data in custom table in wordpress using Ajax

my jquery code(Ajax code )

jQuery.ajax(ajax_object.ajax_url, {
                                    type: "POST",
                                    data: data,
                                    cache: false,
                                    success: function (response) {
                                        alert(response);

                                    },
                                    error: function (error) {
                                        if (typeof console === "object") {
                                            console.log(error);
                                        }
                                    },
                                    complete: function () {
                                    }
                                }); 

my php code to save data

 if(!class_exists('bookly_appo_Ajax')) 
    {
        class bookly_appo_Ajax
        {
            public function __construct()
            {
                add_action('init', array(&$this, 'init'));
            }
            public function init()
            {
                add_action( 'wp_enqueue_scripts', 'enqueue_ajax_booklyapp' );

                function enqueue_ajax_booklyapp($hook) {

                wp_enqueue_script('ajax-script-booklyapp', plugins_url( '/ajax.js?v='.rand(), __FILE__ ), array('jquery')); 
                wp_localize_script('ajax-script-booklyapp', 'ajax_object',
                        array(
                            'ajax_url' => admin_url('admin-ajax.php')
                            )
                        );
            }

            add_action('wp_ajax_add_category_bookly', 'add_category_bookly_callback');
            add_action('wp_ajax_nopriv_add_category_bookly', 'add_category_bookly_callback');
            function add_category_bookly_callback() {
                      $storeid=$_REQUEST['storeid'];

              $rows = $wpdb->insert(
                            $table_category, array(

                                'store_id' => $storeid,
                                 )
                            );
            $lastid = $wpdb->insert_id;
            }
      }
   }
}

my question is

1. when login with admin user my ajax work fine but when login with other user(subscriber user) of my site it's give error "Opps!You do not have sufficient perissions to access this page"
2. which type of accessibility provide to subscriber to used admin-ajax.php file

Answer 1

My guess would be you're not defining the action for privileged and non-priviliged users. Do you have both

add_action( 'wp_ajax_ACTION', 'bookly_appo_Ajax' );
add_action( 'wp_ajax_nopriv_ACTION', 'bookly_appo_Ajax' );

In your php? wp_ajax_nopriv_ACTION is probably what you're missing.