PHP Exception

Uncaught exception 'Zend_Controller_Dispatcher_Exception' with message 'Cannot load controller class "IndexController" from file "./application/modules/default/controllers/IndexController.php''
File: /var/users/gurian_ftp/public_html/ZendFramework/1.7.8/Zend/Controller/Dispatcher/Standard.php, line 337
Trace

0. /var/users/gurian_ftp/public_html/ZendFramework/1.7.8/Zend/Controller/Dispatcher/Standard.php(256): Zend_Controller_Dispatcher_Standard->loadClass('IndexController')
1. /var/users/gurian_ftp/public_html/ZendFramework/1.7.8/Zend/Controller/Front.php(936): Zend_Controller_Dispatcher_Standard->dispatch(Object(Zend_Controller_Request_Http), Object(Zend_Controller_Response_Http))
2. /var/users/gurian_ftp/public_html/index.php(301): Zend_Controller_Front->dispatch()
3. {main}