I can't access Extension Warehouse (EW) and only EW. I can access anything else... 2 days trying to solve it. PLEASE, HELP!

[piedronp]

Yeah, the installation was ok.
You’re not getting it. I mean i can’t access the website “http://extensions.sketchup.com/”. It has nothing to do with the SketchUp web version, which I know doesn’t support extensions.
All I get is this:

I think could be some settings of my laptop, but I can find out the reason.