Regarding the various errors you may occur while browsing our website, we are working on a way to resolve this. The best thing to do is to refresh the page and reload the content - I have upgraded the site and added some new features while we figure out something. Logging out and back in also seems to fix some issues.
I would also recommend you clear your browser cache, see this website for instructions.
Thank you for being a valued member of our community, we appreciate your patience.