Exception in Web application (in debug-mode)

#0 /var/www/sites/comunesp5/www/resources/classes/controllers/PubblicazioniController.php(295): PubblicazioniController->loadAttoFromArgs(Object(ArrayList))
#1 /var/www/sites/comunesp5/www/APLib/framework/webapplication/Controller.php(275): PubblicazioniController->atto(Object(ArrayList))
#2 /var/www/sites/comunesp5/www/APLib/framework/webapplication/WebApplication.php(726): Controller->executeAction('atto', Object(ArrayList))
#3 /var/www/sites/comunesp5/www/APLib/framework/webapplication/WebApplication.php(426): WebApplication->executeCurrentController()
#4 /var/www/sites/comunesp5/www/resources/classes/ComuneSpinazzolaWebApplication.php(234): WebApplication->process()
#5 /var/www/sites/comunesp5/www/APLib/framework/webapplication/WebApplication.php(464): ComuneSpinazzolaWebApplication->process()
#6 /var/www/sites/comunesp5/www/index.php(36): WebApplication->output()
#7 {main}