<?php

class MenuAdmin extends ModelAdmin {
	
	private static $url_segment = 'menus';
    private static $menu_title = 'Menus';
    private static $managed_models = array('Menu');
	
	private $showImportForm = false;
	
}

<?php

class MenuAdmin extends ModelAdmin {
	
	private static $url_segment = 'menus';
    private static $menu_title = 'Menus';
    private static $managed_models = array('Menu');
	
	public $showImportForm = false;
	
}

Fix access level fatal error.
Fix access level fatal error.
