Unable to upload images

states server is not available whenever I try to upload a image.

Anyone can help?

Please post a screenshot of what you are doing, also specify what steps you took to try to upload the image.
I just tested it and the image uploaded without any problems.

I was unable to load an image until I renamed the image file to remove the dash in the file name. The error message was completely misleading and useless, this nasty bug prevents publishing.

I was able to upload a file with a dash in it.:

Can you reproduce the error message and post the offending file (with dash) here?