[ask] tiba-tiba session error knp ya?

[JagoVB]

gan tanya lagi kok td tiba-tiba session yg saya pakai di php error ya



padahal kemarin ok2 aja



nie pesan error nya


Code:

Warning: Cannot modify header information - headers already sent by (output started at C:\xampp\htdocs\rc\b\menu_proses.php:12) in C:\xampp\htdocs\rc\b\menu_proses.php on line 44