hocam giriş yapmak isteyince aşağıdaki hatayı veriyor. Ama panel.php gidince ürün listeledi.

[25-Jan-2016 00:45:43 Europe/Istanbul] PHP Warning:  session_start(): Cannot send session cache limiter - headers already sent (output started at /home/chopper07/public_html/siparis/giris.php:1) in /home/chopper07/public_html/siparis/giris.php on line 5

[25-Jan-2016 00:45:43 Europe/Istanbul] PHP Warning:  Cannot modify header information - headers already sent by (output started at /home/chopper07/public_html/siparis/giris.php:1) in /home/chopper07/public_html/siparis/giris.php on line 16

hatası veriyor.