reqrite_anspress_page.php

<?php

/**
 * This filter will override AnsPress rewrite rule
 * @param array $rules
 **/
 
function my_custom_ap_rewrite($rules){
	global $wp_rewrite;
	$base_page_id 		= ap_opt('base_page');
	$rules["categories/?$"] = "index.php?page_id=".$base_page_id."&ap_page=categories";
	$rules["tags/?$"] = "index.php?page_id=".$base_page_id."&ap_page=tags";
	return $rules;
}
add_filter('ap_rewrite_rules', 'my_custom_ap_rewrite' );