Can't upload any addons to workshop

I’m trying to upload a map to workshop. I used both workshopper and gmpublish.

When I use workshopper, it just says “uploading to steamworks” and after that nothing happens
When I use gmpublish it throws this::

What should I do now?

edited
addon.json


{
	"title"		:	"tropical_fever",
	"type"		:	"map",
	"tags"		:	[ "build" ],
	"ignore"	:
	[
	]
}