Kleine Scripting-Fragen: setelementdata Problem

addEventHandler("onClientHUDRender",getRootElement(),function()
for k,v in ipairs(getElementsByType("player")) do
    local lx,ly,lz = getPedBonePosition(localPlayer,8)
    local x,y,z = getPedBonePosition(v,8)
        if getDistanceBetweenPoints3D(lx,ly,lz,x,y,z) < 50 then
            local x1,y1 = getScreenFromWorldPosition(x,y,z+0.5)
            local x2,y2 = getScreenFromWorldPosition(x,y,z+1)
                if x1 and y1 and x2 and y2 then
                    if getElementData(v, "duty") == 1 then
                        dxDrawText("Admin-onDuty\n"..getPlayerName(v),x1,y1,x1,y1,tocolor(255,0,0,255),2,"default-bold","center", "top", false, false, false, true)
                        setElementData(getLocalPlayer(),"Medic Kit",2)

                    elseif duty == 0 then
                        setElementData(getLocalPlayer(),"Medic Kit",0)

                    end
                end
            end
    end
end
)