There are
Fatal error: Uncaught Error: Call to a member function Prepare() on bool in /var/www/html/lib/php/classes/ItalyDAO.php:94 Stack trace: #0 /var/www/html/index.php(11): ItalyDAO->getCount('words') #1 {main} thrown in /var/www/html/lib/php/classes/ItalyDAO.php on line 94

Fatal error: Uncaught Error: Call to a member function Close() on bool in /var/www/html/lib/php/classes/DB.php:16 Stack trace: #0 /var/www/html/lib/php/classes/ItalyDAO.php(26): DB->closeConnection() #1 [internal function]: ItalyDAO->__destruct() #2 {main} thrown in /var/www/html/lib/php/classes/DB.php on line 16