Attempt to concatenate field "x" (a nil value) help??

I have the dictionary with jobs inside a modulescript in repl. storage:

local Jobs = {}

Jobs.AvailableJobs = {}
Jobs.AvailableJobs["PizzaChef"] = {Name = "Pizza Chef"}, {Photo = "1934128599"}, {ReqLvl = 1}
Jobs.AvailableJobs["StoreClerk"] = {Name = "Store Clerk"}, {Photo = "1934127830"}, {ReqLvl = 1}
Jobs.AvailableJobs["PoliceOfficer"] = {Name = "Law Enforcement"}, {Photo = "1934126760"}, {ReqLvl = 2}
Jobs.AvailableJobs["Medic"] = {Name = "Doctor"}, {Photo = "1934126267"}, {ReqLvl = 3}

return Jobs

And whenever I try to set an image labels image to the photo ID I get the error:

19:49:50.856 - Players.radusavin366.PlayerGui.HUD.MainHUD.Buttons.JobPopup.LocalScript:65: attempt to concatenate field 'Photo' (a nil value)

(attempt to set the image:)

		local JobImage = Instance.new("ImageLabel", JobBox)
		JobImage.BackgroundTransparency = 1
		JobImage.Position = UDim2.new(0.248,0,0.057,0)
		JobImage.Size = UDim2.new(0,100,0,100)
		JobImage.Image = "rbxassetid://" .. Jobs.AvailableJobs[id].Photo

Full script (local, inside PlayerGui, triggered by it's parent that is a gui button):

local exists = false
local Jobs = require(game.ReplicatedStorage.Jobs)

---constants

local x = 0
local y = 1
local z = 0

script.Parent.MouseButton1Click:Connect(function()
	local JobPanel
	if not exists then
	exists = true
	JobPanel = Instance.new("Frame", script.Parent.Parent.Parent.Parent)
	JobPanel.BackgroundTransparency = 1
	JobPanel.Name = "Job Panel"
	JobPanel.AnchorPoint = Vector2.new(0.5, 0.5)
	JobPanel.Position = UDim2.new(0.5,0,0.5,0)
	JobPanel.Size = UDim2.new(0,800,0,450)
	local Title = Instance.new("TextLabel", JobPanel)
	Title.BackgroundColor3 = Color3.new(255,255,255)
	Title.Size = UDim2.new(0,750,0,30)
	Title.Text = "Job Menu"
	Title.TextScaled = true
	local Close = Instance.new("TextButton", JobPanel)
	Close.BackgroundColor3 = Color3.new(255,53,53)
	Close.Position = UDim2.new(0.938,0,0,0)
	Close.Size = UDim2.new(0,50,0,30)
	Close.Text = "Close"
	Close.MouseButton1Click:Connect(function()
		JobPanel:Destroy()
		exists = false
		x = 0
		y = 1
		z = 0
	end)
	local JobFrame = Instance.new("ScrollingFrame", JobPanel)
	JobFrame.Position = UDim2.new(0,0,0.067,0)
	JobFrame.Size = UDim2.new(0,600,0,420)
	JobFrame.ScrollBarThickness = 3
	local JobInfo = Instance.new("Frame", JobPanel)
	JobInfo.Position = UDim2.new(0.75,0,0.067,0)
	JobInfo.Size = UDim2.new(0,200,0,420)
	local selectAJob = Instance.new("TextLabel", JobInfo)
	selectAJob.Position = UDim2.new(-0.002,0,0,0)
	selectAJob.Size = UDim2.new(0,200,0,50)
	selectAJob.Text = "Select a job."
	for id, v in pairs(Jobs.AvailableJobs) do
		local o = 200
		local u = 210
		local JobBox = Instance.new("Frame", JobFrame)
		JobBox.BackgroundTransparency = 1
		JobBox.Size = UDim2.new(0,200,0,210)
		JobBox.Position = UDim2.new(0,o * x,0, u * z)
		x = x + 1
		y = y + 1
		if y == 3 then
			y = 1
			z = z + 1
		end
		local JobImage = Instance.new("ImageLabel", JobBox)
		JobImage.BackgroundTransparency = 1
		JobImage.Position = UDim2.new(0.248,0,0.057,0)
		JobImage.Size = UDim2.new(0,100,0,100)
		JobImage.Image = "rbxassetid://" .. Jobs.AvailableJobs[id].Photo
		local JobName = Instance.new("TextButton", JobBox)
		JobName.Position = UDim2.new(0.1,0,0.748,0)
		JobName.Size = UDim2.new(0,160,0,40)
		JobName.Text = Jobs.AvailableJobs[id].Name
		local Lvl = Instance.new("TextLabel", JobBox)
		Lvl.Size = UDim2.new(0,160,0,26)
		Lvl.Position = UDim2.new(0.1,0,0.626,0)
		Lvl.Text = "Required level: " .. Jobs.AvailableJobs[id].ReqLvl
	end
	end
end)

Help please!