Attemp to index a nil value (field 'job')

[MartinMarih]

I try to find a solution for this error, can anyone help me?

the error lua:859: attempt to index a nil value (field ‘job’)

this is the line 859

          if GRPCore.GetPlayerData().job.name == 'mechanic' then

and this is from 855 to 879

if nearbennyLocationLSC1 then
                    if not isPlyInBennys then
                        Draw3DText(bennyLocationLSC1.x, bennyLocationLSC1.y, bennyLocationLSC1.z + 0.5, "[Press ~p~E~w~ - Enter Los Santos Customs]", 255, 255, 255, 255, 4, 0.45, true, true, true, true, 0, 0, 0, 0, 55)
                        if IsControlJustReleased(1, 38) then
                            if GRPCore.GetPlayerData().job.name == 'mechanic' then
                                TriggerEvent('event:control:bennysmech', 1)
                            else
                                TriggerEvent('DoLongHudText', 'You are not a mechanic!', 2)
                            end
                        end
                    else
                        disableControls()
                    end
                end

            else
                Wait(1000)
            end
        else
            Wait(2000)
        end

        Citizen.Wait(1)
    end
end)