@akosikoneho
By that do you mean that I hadn't used the "studying" feature on tagalog.com? If so, my response below should suffice.
@AMBoy
Thanks for your suggestion to fix the problem. I've actually used that feature a lot.
If anything, I wouldn't be too surprised if I marked too many words as "studying" and "broke" the feature or something considering I'm in the thousands of words now I've marked as "studying".
Weird problem this one; with closer analysis it seems as if it's an HTTP 500 error, which is a all-encompassing error to say that the problem usually isn't on my end, unlike what I first thought.
Also of note is that this page works when I'm not logged in, but when I'm logged in it suddenly doesn't work.