Invalid controller specified (asset)

#0 /srv/www/certifynz.co.nz/vendor/zendframework/zendframework1/library/Zend/Controller/Front.php(954): Zend_Controller_Dispatcher_Standard->dispatch(Object(Zend_Controller_Request_Http), Object(Zend_Controller_Response_Http))
#1 /srv/www/certifynz.co.nz/vendor/zendframework/zendframework1/library/Zend/Application/Bootstrap/Bootstrap.php(97): Zend_Controller_Front->dispatch()
#2 /srv/www/certifynz.co.nz/vendor/zendframework/zendframework1/library/Zend/Application.php(366): Zend_Application_Bootstrap_Bootstrap->run()
#3 /srv/www/certifynz.co.nz/www/index.php(59): Zend_Application->run()
#4 {main}