/ebooks/representation-of-multiple-valued-logic-functions-synthesis-lectures-on-digital-circuits-and
  (8) Undefined index: host   FrontController.php   line 87     18-7-18   19:52
FrontController->getInstance() # line   16, file: /home/smart/public_html/index.php
  FrontController->__construct() # line   37, file: /home/smart/public_html/core/FrontController.php
    FrontController->loadSettings() # line   51, file: /home/smart/public_html/core/FrontController.php