Wordpress Plugin: You do not have sufficient permissions to access this page

Hi Guys,

I keep having a problem with my wordpress plugins that give me this error

You do not have sufficient permissions to access this page

I have read a couple posts around the net but the fix does not apply to my plugin. Any advice or solution would be greatly appreciated.

Below is my code that i am using to load my pages.

<?php

add_action('admin_menu', 'mytheme_add_pages');

function mytheme_add_pages() {
	/**add_menu_page( $page_title, $menu_title, $capability, $menu_slug, $function, $icon_url, $position );**/
    add_menu_page('Basic', 'Basic', 'manage_options', 'mytheme', 'basic_page');
	 
	/**add_submenu_page( $parent_slug, $page_title, $menu_title, $capability, $menu_slug, $function);**/
    add_submenu_page('mytheme', 'Editor Post', 'Editor Post', 'manage_options', 'Editor Post', 'editor_page');
    add_submenu_page('mytheme', 'Banners', 'Banners', 'manage_options', 'Add/Edit Banners', 'banners_page');
	
}

function basic_page() {
	require_once("../option_module/basic.php");
}

function editor_page() {
	global $wpdb,$ticker_prefix;
	require_once("../option_module/editor_pick.php");
}

function banners_page() {
    require_once("../option_module/rotating_banner.php");
}

PHP:

 

I found out what was causing my problem. It is because there is a space between the words on the slug parameter.