/fr/useCondition.html
  (8) Undefined index: lang   InfoController.php   line 16     21-11-17   14:50
FrontController->dispatch() # line   17, file: /var/www/netref.info/index.php
  call_user_func_array(Array[2], Array[0]) # line  220, file: /var/www/netref.info/core/FrontController.php
    InfoController->useConditionAction() # line    0, file: unknown