Vivacity 24 rudder

My rudder has sliping from my teler and I have very little control when aye move my teller dose any1 know if it is bearings or is it packed with something am hoping someone knows before I have to get in and take it of thanks

How is it slipping? Is the rudder stock slipping down, out of the rudder bearing tube (The rudder falling out of the boat) or is there play in the tiller (The head of the tiller isn’t snug on the rudderpost.)? Fixes will depend upon what the problem is. More detailed information, including how the tiller is attached to the rudder head, would be helpful.