Somehow you are not able to activate your account enymore. When you try to do that it gives you this message ''The activation key you supplied does not match any in the database.'' This doesn't seem to be our forum problem, but the base problem, since I'm getting the same error while trying to log into main forum. If enyone knows what the problem is, please contact with me through pm.
Fixed the problem by temporarly removing activating. Will have a poll on putting it back soon.