Natural System Error Messages 8251-8300

NAT8300: Wrong protocol type, or protocol not supported.

Text
Wrong protocol type, or protocol not supported.
Expl.
Request Document needs the type of the used document as first part
of the requested URL at operand 1.
Either no protocol type or a protocol type that is not supported was
specified with operand1.
Actn.
Change the protocol type to a valid type, e.g. "http://",
and run the program again.