403 Forbidden error indicates a permission error on the server and typically only blocks access to your entire site if it did not setup correctly on signup.
If this is a new site or you recently installed a security plugin, please get in touch with us via the Support tab of your Hosted account and include the following:
- Did you recently install or update a theme or plugin? If so which one?
- What was the last thing you remember doing in your admin?
- Has your domain or url changed recently?