I have a site written using zend framework and want to install the same script on subdomain for testing purposes. I copied all the files and database as well but when I enter the subdomain I get this error:

an unexpected error occurred.
Unexpected Exception: Invalid controller specified (error)

#0 /var/www/virtual/mysite/eldari/escape_core/library/Zend/Controller/Front.php(945): Zend_Controller_Dispatcher_Standard->dispatch(Object(Zend_Controller_Request_Http), Object(Zend_Controller_Response_Http))
#1 /var/www/virtual/mysite/eldari/htdocs/index.php(156): Zend_Controller_Front->dispatch()
#2 {main}
Can anyone please tell what am I doing wrong?

Thanks in advance