That is what some people are getting when they try to upload their mods. I know where the "problem" (it's not really a bug that can be fixed, it's more a thing depending on which zip-software you use) is!

If you encounter the situation that you want to upload a .zip and it is not working simply drop me a message at the contact form!

On another note we now have a rss feed for the news! Enjoy =)