Fatal error: Uncaught Error: Undefined constant "MESSAGE_DATABASE_ERROR" in /home/rasianka/ftp/danielbukowski.pl/php/classes/articles.php:22 Stack trace: #0 /home/rasianka/ftp/danielbukowski.pl/php/classes/articles.php(96): articles->databaseConnection() #1 /home/rasianka/ftp/danielbukowski.pl/article.php(5): articles->getArticles('%') #2 {main} thrown in /home/rasianka/ftp/danielbukowski.pl/php/classes/articles.php on line 22