Error: Invalid controller specified (default.htm)

#0 /var/www/vhosts/equiposens.org/httpdocs/Web/library/Zend/Controller/Front.php(954): Zend_Controller_Dispatcher_Standard->dispatch(Object(Zend_Controller_Request_Http), Object(Zend_Controller_Response_Http))
#1 /var/www/vhosts/equiposens.org/httpdocs/Web/application/bootstrap.php(144): Zend_Controller_Front->dispatch()
#2 /var/www/vhosts/equiposens.org/httpdocs/Web/index.php(31): Bootstrap->runApp()
#3 {main}

Error la página seleccionada no existe o no se encuentra