idformation is not specified

string(2584) "#0 /var/www/vhosts/ira.eu/httpdocs/frameworks/Zend/Controller/Router/Rewrite.php(433): Zend_Controller_Router_Route->assemble(Array, true, true)
#1 /var/www/vhosts/ira.eu/httpdocs/frameworks/Zend/View/Helper/Url.php(49): Zend_Controller_Router_Rewrite->assemble(Array, 'formation', true, true)
#2 /var/www/vhosts/ira.eu/httpdocs/application/views/helpers/Lien.php(15): Zend_View_Helper_Url->url(Array, 'formation', true)
#3 [internal function]: Zend_View_Helper_Lien->lien('formation', Array)
#4 /var/www/vhosts/ira.eu/httpdocs/frameworks/Zend/View/Abstract.php(341): call_user_func_array(Array, Array)
#5 /var/www/vhosts/ira.eu/httpdocs/application/modules/frontend/views/scripts/index/inscription-formation.phtml(44): Zend_View_Abstract->__call('lien', Array)
#6 /var/www/vhosts/ira.eu/httpdocs/application/modules/frontend/views/scripts/index/inscription-formation.phtml(44): Zend_View->lien('formation', Array)
#7 /var/www/vhosts/ira.eu/httpdocs/frameworks/Zend/View.php(107): include('/var/www/vhosts...')
#8 /var/www/vhosts/ira.eu/httpdocs/frameworks/Zend/View/Abstract.php(832): Zend_View->_run('/var/www/vhosts...')
#9 /var/www/vhosts/ira.eu/httpdocs/frameworks/Zend/Controller/Action/Helper/ViewRenderer.php(902): Zend_View_Abstract->render('index/inscripti...')
#10 /var/www/vhosts/ira.eu/httpdocs/frameworks/Zend/Controller/Action/Helper/ViewRenderer.php(923): Zend_Controller_Action_Helper_ViewRenderer->renderScript('index/inscripti...', NULL)
#11 /var/www/vhosts/ira.eu/httpdocs/frameworks/Zend/Controller/Action/Helper/ViewRenderer.php(962): Zend_Controller_Action_Helper_ViewRenderer->render()
#12 /var/www/vhosts/ira.eu/httpdocs/frameworks/Zend/Controller/Action/HelperBroker.php(276): Zend_Controller_Action_Helper_ViewRenderer->postDispatch()
#13 /var/www/vhosts/ira.eu/httpdocs/frameworks/Zend/Controller/Action.php(522): Zend_Controller_Action_HelperBroker->notifyPostDispatch()
#14 /var/www/vhosts/ira.eu/httpdocs/frameworks/Zend/Controller/Dispatcher/Standard.php(288): Zend_Controller_Action->dispatch('inscriptionform...')
#15 /var/www/vhosts/ira.eu/httpdocs/frameworks/Zend/Controller/Front.php(945): Zend_Controller_Dispatcher_Standard->dispatch(Object(Zend_Controller_Request_Http), Object(Zend_Controller_Response_Http))
#16 /var/www/vhosts/ira.eu/httpdocs/frameworks/Zend/Application/Bootstrap/Bootstrap.php(77): Zend_Controller_Front->dispatch()
#17 /var/www/vhosts/ira.eu/httpdocs/frameworks/Zend/Application.php(328): Zend_Application_Bootstrap_Bootstrap->run()
#18 /var/www/vhosts/ira.eu/httpdocs/www/index.php(88): Zend_Application->run()
#19 {main}"