Issue with performing arithmetic on nil and number

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#1

I am working on a datastore loading system that will place models into the world wherever the player put them last. However, I am running into an issue, particularly with setting the orientation of a model whose data was saved as 0.

The exact error I am receiving:

ServerScriptService.BuildingDatastore:71: attempt to perform arithmetic (mul) on nil and number

I am assuming this error is because the 6, 7, and 8 values I am pulling from the Datastore are = 0. Here’s the relevant code I am using:

for i, obj in ipairs(data) do
			print(obj[1])
			local buildingTemplate = game.ReplicatedStorage.PartsAndModels.Models:FindFirstChild(obj[1])
			local newBuilding = buildingTemplate:Clone()
			
			newBuilding.Parent = game.Workspace.Buildings
			newBuilding.PrimaryPart.CFrame = CFrame.new(obj[3], obj[4], obj[5])
			newBuilding.PrimaryPart.CFrame *= CFrame.Angles(obj[6]*math.pi/180, obj[7]*math.pi/180, obj[8]*math.pi/180) 
--THE ABOVE LINE IS WHERE THE ERROR IS OCCURRING
			
			if data[9] == true then
				for i, part in ipairs(obj:GetChildren()) do
					if part:IsA("Part") then
						part.CanCollide = false
						part.Transparency = 0.5
						part.BrickColor = BrickColor.new("Pastel light blue")
					end
				end
				obj:FindFirstChild("PartsListGui").HandlerScript.Enabled = true
			else if data[9] == false then
					obj:FindFirstChild("PartsListGui"):Destroy()
				end
			end
		end

And, just as proof that those values exist as zero:
image

Any tips on dealing with this?

#2

It means that the value you want to perform math is nil, you should try to debug your script with print() to find what value is nil to fix it.