jos-Error: Komponente nicht gefunden

JSite -> dispatch() @ D:\inetpub\wwwroot\VeV2012\index.php:42
JComponentHelper :: renderComponent() @ D:\inetpub\wwwroot\VeV2012\includes\application.php:197
JError :: raiseError() @ D:\inetpub\wwwroot\VeV2012\libraries\joomla\application\component\helper.php:337
JError :: raise() @ D:\inetpub\wwwroot\VeV2012\libraries\joomla\error\error.php:251