I am having similar problems with encrave. It will show all the categories but when I click on it, it will say "no activities available". It has been doing this for several days. I wasn't sure if this problem was unique to me or if others were having this issue as well.
Unfortunately it looks like a block has been put in place. Encrave does not share details with us about blocks and unfortunately they do not reinstate users after they have been blocked. I am sorry about that. On a good note though, we still have lots of other ways for you to make money.