Vehicle repair error

[Y_MAN]

function displayVehicleLoss(loss) 
    if getVehicleOccupant(source) then 
        cancelEvent() 
    end 
end 
  
addEventHandler("onVehicleDamage", getRootElement(), displayVehicleLoss) 

[Anubhav]

  
function displayVehicleLoss(loss) 
    if getVehicleOccupant(source) then 
        setElementHealth(source, getElementHealth(source)+loss) 
    end 
end 
addEventHandler("onVehicleDamage", getRootElement(), displayVehicleLoss)