Quando eu entro no site da esse erro:

Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[42S22]: Column not found: 1054 Unknown column 'z_forum.icon_id' in 'field list'' in C:\xampp\htdocs\latestnews.php:244 Stack trace: #0 C:\xampp\htdocs\latestnews.php(244): PDO->query('SELECT `z_forum...') #1 C:\xampp\htdocs\index.php(63): include('C:\xampp\htdocs...') #2 {main} thrown in C:\xampp\htdocs\latestnews.php on line 244

adicione

alter table `z_forum` add `icon_id` INT NOT NULL;