Yes, unfortunately those are both problems with the site. The second is an intermittent problem, or which has the above workaround.
The search is broken at the moment as well, but we are looking into it. In the meantime you can search the site using Google. Apologies everyone
Your second problem is a known issue, very annoying, but does have a workaround, see here: https://www.libcom.org/forums/feedback-content/error-navigating-tag-or-forum-indexes-19012014