Bundle plugin version check and set a notice

/* ----------------------------------------------------------------------------------- */
/* 	Update check awebooking
  /*----------------------------------------------------------------------------------- */
//include_once(ABSPATH.'wp-admin/includes/plugin.php');
if ( ! function_exists( 'is_plugin_active' ) ){
     require_once( ABSPATH . '/wp-admin/includes/plugin.php' );
}
if (is_plugin_active('awebooking/init.php')) {
// check the latest Aweooking version
    $plugin_data = get_plugin_data(WP_PLUGIN_DIR . '/awebooking/init.php');
    $plugin_version = $plugin_data['Version'];
    if (version_compare($plugin_version, '2.5.2', '<')) {
        add_action('admin_notices', 'xs_plugin_awe_update_notify');
    }

}

function xs_plugin_awe_update_notify() {
    ?>
    <div class="message" style="padding: 10px; font-size: 14px; color: #FCFCFC; color: #000000; background: white; box-shadow: 1px 1px 10px #828181;"><span style="color: #C31111; font-weight:bold;">PLEASE UPGRADE "AweBooking Plugin" to new version 2.5.1</span> <br><br> 1. Go to: Plugins -> Installed Plugins. <br>2. <strong>DELETE plugin</strong> "Awebooking" for the system. <strong><i>(you must DEACTIVATE plugin first and DELETE it)</i></strong> <br> 3. <strong>Click on "Begin installing plugin"</strong>, to install new version.</span> <br><br><i>Note: No data will be loss in this upgrade process.</i> </div>
    <?php
}