HTTP Error 502.2 - Bad Gateway

hi,

my new Server wrote me this error:

Chyba HTTP 502.2 - Bad Gateway

Description: The specified CGI application did not return a complete set of HTTP headers.

Error Code: 0x00000001

Notification: ExecuteRequestHandler

Module: CgiModule

Requested URL: http://localhost:80/py/python.py

Physical Path: D:\Bertik-www stranky\PYTHON\python.py

Logon User: Anonymous

Logon Method: Anonymous

Any one known why i have this problem?