Fatal error: Uncaught Error: Call to undefined function wp_register_fatal_error_handler() in /home/kosmakc1/kosmak.com.tr/wp-settings.php:64 Stack trace: #0 /home/kosmakc1/kosmak.com.tr/wp-config.php(80): require_once() #1 /home/kosmakc1/kosmak.com.tr/wp-load.php(50): require_once('/home/kosmakc1/...') #2 /home/kosmakc1/kosmak.com.tr/wp-blog-header.php(13): require_once('/home/kosmakc1/...') #3 /home/kosmakc1/kosmak.com.tr/index.php(17): require('/home/kosmakc1/...') #4 {main} thrown in /home/kosmakc1/kosmak.com.tr/wp-settings.php on line 64