It means you cant do it its forbidden
It means you've gone over your **** Limit.
it could mean that you need to furnish a password and have the correct cookie on your computer be making the request from the correct IP address or its not available for public access
You have to be a host or be invited by the host to get on the site. What site was/is it? I may be able to help. You can pm me if you don't want it public.
shite internet provider. i used to delete cookies and search history, make google find a fresh connection.. ;)