Can't upload map

I can’t upload my map file packed in ZIP.
It keep saying:

500 - Internal server error.
There is a problem with the resource you are looking for, and it cannot be displayed.

What’s the point ?

How big is it?

Packed: 18.8MB
Unpacked: 38MB

Goood… Again Error 500

[editline]01:09PM[/editline]

http://www.desca.dk/Gammelt/fuuuuu.png