They are probably referring to the E-clip and washer that hold the end of the shift shaft in place on the LHS? It is possible that the stopper arm might have bent as well (at the other end of the shaft) if the shaft itself has moved/is moving a lot? The stopper lever arm is behind the clutch.

I would not be tempted to ride the bike while it is in this state. A damaged/bent shift shaft, bearing, stopper lever arm etc. can lead to terminal gearbox failure if not attended to.

Fortunately, the shift shaft and its parts can be replaced with the engine in the frame. Only the RH engine cover (with oil/water pumps) and clutch need to be removed and it isn't massively time-consuming. It is well worth you (or a dealer/mechanic) removing the clutch and giving the shift shaft and its associated components a thorough investigation.

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