Fatal error: Uncaught Error: Call to a member function fetch() on bool in /home/derste/public_html/include/DB.php:654 Stack trace: #0 /home/derste/public_html/include/functions.php(17): DB->getRow() #1 /home/derste/public_html/include/functions.php(402): ayar('site_http') #2 /home/derste/public_html/header.php(4): require_once('/home/derste/pu...') #3 /home/derste/public_html/ogretmen-detay.php(7): require_once('/home/derste/pu...') #4 {main} thrown in /home/derste/public_html/include/DB.php on line 654