Hello katnip -
I am sorry to hear that you've run into some difficulty with the site. We're not aware of any issues on our end either at that time or presently that would cause an issue such as you have described. As noted there is an issue at this time regarding intermittent difficulties selecting a leaf category, but the site has been up and operating normally otherwise.
If this difficulty is persisting for you, I suggest you first try clearing the cache of your browser to ensure that it has not cached any of the site pages erroneously and if the problem continues after that, please try resetting your router/modem. Should you continue to have issue at that time, please feel free to file a support case from under the Help tab of the site letting us know and please include your operating system and browser information so we can look into it further.