fix 404 pagination wordpress

function remove_page_from_query_string($query_string) {
	if (is_admin()) return $query_string;
	if ($query_string['name'] == 'page' && isset($query_string['page'])) {
		unset($query_string['name']);
		// 'page' in the query_string looks like '/2', so i'm spliting it out
		list($delim, $page_index) = split('/', $query_string['page']);
		$query_string['paged'] = $page_index;
	}
	return $query_string;
}
// I will kill you if you remove this. I died two days for this line
add_filter('request', 'remove_page_from_query_string');