It's likely hanging on Tiger Palm since before 34 it costs chi to use it. You could just remove TP from the rotation and it should work again unless there's something else.
Or go into the Tiger Palm skill in Ability Editor and add
and UnitPower("player",12) >= 1
after if IsSpellKnown(100787) in the code. That'll make it check for 1 chi every time it tries to use the spell.