Une erreur s'est produite

Exception:

    code: 0
    file: /home/arduinofom/vendors/ZendFramework-1.12.20/library/Zend/Controller/Plugin/Broker.php
    line: 336
    mesg: unsupported ISO8601 format ()#0 /home/arduinofom/vendors/ZendFramework-1.12.20/library/Zend/Date.php(1078): Zend_Date->_calculate('set', '', 'c', 'fr')
#1 /home/arduinofom/vendors/ZendFramework-1.12.20/library/Zend/Date.php(197): Zend_Date->set('', 'c', 'fr')
#2 /home/arduinofom/eforthwin/application/layouts/scripts/layout-article.phtml(83): Zend_Date->__construct('', 'c', Object(Zend_Locale))
#3 /home/arduinofom/vendors/ZendFramework-1.12.20/library/Zend/View.php(157): include('/home/arduinofo...')
#4 /home/arduinofom/vendors/ZendFramework-1.12.20/library/Zend/View/Abstract.php(888): Zend_View->_run('/home/arduinofo...')
#5 /home/arduinofom/vendors/ZendFramework-1.12.20/library/Zend/Layout.php(796): Zend_View_Abstract->render(NULL)
#6 /home/arduinofom/vendors/ZendFramework-1.12.20/library/Zend/Layout/Controller/Plugin/Layout.php(143): Zend_Layout->render()
#7 /home/arduinofom/vendors/ZendFramework-1.12.20/library/Zend/Controller/Plugin/Broker.php(333): Zend_Layout_Controller_Plugin_Layout->postDispatch(Object(Zend_Controller_Request_Http))
#8 /home/arduinofom/vendors/ZendFramework-1.12.20/library/Zend/Controller/Front.php(965): Zend_Controller_Plugin_Broker->postDispatch(Object(Zend_Controller_Request_Http))
#9 /home/arduinofom/vendors/ZendFramework-1.12.20/library/Zend/Application/Bootstrap/Bootstrap.php(105): Zend_Controller_Front->dispatch()
#10 /home/arduinofom/vendors/ZendFramework-1.12.20/library/Zend/Application.php(384): Zend_Application_Bootstrap_Bootstrap->run()
#11 /home/arduinofom/eforthwin/index.php(96): Zend_Application->run()
#12 {main}
    #0 /home/arduinofom/vendors/ZendFramework-1.12.20/library/Zend/Controller/Front.php(965): Zend_Controller_Plugin_Broker->postDispatch(Object(Zend_Controller_Request_Http))
#1 /home/arduinofom/vendors/ZendFramework-1.12.20/library/Zend/Application/Bootstrap/Bootstrap.php(105): Zend_Controller_Front->dispatch()
#2 /home/arduinofom/vendors/ZendFramework-1.12.20/library/Zend/Application.php(384): Zend_Application_Bootstrap_Bootstrap->run()
#3 /home/arduinofom/eforthwin/index.php(96): Zend_Application->run()
#4 {main}