Ошибка в class_session.php on line 436

[ziege]

Подскажите пожалуйста, где собака зарыта?

Ошибка:

 

Warning: mb_strstr() [function.mb-strstr]: Empty haystack in ... /sources/classes/class_session.php on line 436

 

		//-----------------------------------------
	// Knock out Google Web Accelerator
	//-----------------------------------------

   $http_moz = $this->ipsclass->my_getenv('HTTP_X_MOZ');

line 436--->  if ( isset($http_moz) AND strstr( strtolower($http_moz), 'prefetch' ) AND $this->member['id'] )
	{
		if ( IPB_PHP_SAPI == 'cgi-fcgi' OR IPB_PHP_SAPI == 'cgi' )
		{
			@header('Status: 403 Forbidden');
		}
	else
		{
		@header('HTTP/1.1 403 Forbidden');
		}

		print "Prefetching or precaching is not allowed";
	exit();
	}

[Sannis]

Попробуйте заменить

isset($http_moz)

на

isset($http_moz) AND !empty($http_moz)