Katarina's Abilities needs fixing!

Q B and R do not work. This has happened twice to me including one today and it messes up my game to help my team even fight in group fights which is not fair and I believe this bug has been there for a while now. Riot please do something about this. Katarina is one of my favorite champion and having this ability issue may as well classes you to be almost afk because you cant do nothing. She needs an U P D A T E ! Thank you, Plunde (: