Script that used to work doesn't seem to be anymore?

Not sure if it is due to an update but I'm receiving an error on line 38. If anyone has any suggestions that would be very helpful!

Error I get: 15:28:14.745 - The Parent property of InfoBox is locked, current parent: NULL, new parent PlayerGui

Again, didn't receive this error in the past? The model is a morph model. Basically copies the body of the humanoid in the model and pastes it on the player.

Thank you in advance, I appreciate any feedback!

local PlayersService = game:GetService("Players")

while (script:FindFirstChild("InfoRemover") == nil) do wait(0.001) end

local g = Instance.new("ScreenGui")
g.Name = "InfoBox"


local CanMorph = nil
local Lock = nil

local s = script.InfoRemover:Clone()
s.Parent = g
s.Disabled = false

script.Parent.BrickColor = BrickColor.new("Black")

function onTouch(hit)
    if (Lock == nil) then
        Lock = true
        script.Parent.BrickColor = BrickColor.new("Medium stone grey")

        CanMorph = nil
        BodyParts = hit.Parent:GetChildren()
        for i,b in pairs(BodyParts) do
            if (b.className == "Humanoid") then
                CanMorph = true
            end
            wait(0.001)
        end
        if (CanMorph == nil) then
            script.Parent.BrickColor = BrickColor.new("Black")
            Lock = nil
            return
        end

        script.Parent.BrickColor = BrickColor.new("Black")
        g.Parent = PlayersService:FindFirstChild(hit.Parent.Name).PlayerGui --here is where I get an error :/

        BodyParts = hit.Parent:GetChildren()
        for i,b in pairs(BodyParts) do
            if (b.className == "Accessory") or (b.className == "CharacterMesh") or (b.className == "Shirt") or (b.className == "Pants") or (b.className == "ShirtGraphic") then
                b:Destroy()
            end
            if (b.className == "Part") then
                if (b.Name == "Torso") then
                    if (b:FindFirstChild("roblox") ~= nil) then
                        b.roblox:Destroy()
                    elseif (b:FindFirstChild("Decal") ~= nil) then
                        b.Decal:Destroy()
                    end
                end
                if (b.Name == "Head") then
                    if (b:FindFirstChild("Mesh") ~= nil) then
                        b.Mesh:Destroy()
                    end
                end
            end
            wait(0.001)
        end

        BodyParts = script.Parent.Parent:GetChildren()
        for i,b in pairs(BodyParts) do
            if (b.className == "CharacterMesh") or (b.className == "Shirt") or (b.className == "Pants") or (b.className == "ShirtGraphic") then
                b:Clone().Parent = hit.Parent
            end
            if (b.className == "BodyColors") and (hit.Parent:FindFirstChild("Body Colors") ~= nil) then
                hit.Parent:FindFirstChild("Body Colors").HeadColor= b.HeadColor
                hit.Parent:FindFirstChild("Body Colors").LeftArmColor= b.LeftArmColor
                hit.Parent:FindFirstChild("Body Colors").LeftLegColor= b.LeftLegColor
                hit.Parent:FindFirstChild("Body Colors").RightArmColor= b.RightArmColor
                hit.Parent:FindFirstChild("Body Colors").RightLegColor= b.RightLegColor
                hit.Parent:FindFirstChild("Body Colors").TorsoColor= b.TorsoColor
            end
            if (b.className == "Part") then
                if (b.Name == "Torso") then
                    if (b:FindFirstChild("roblox") ~= nil) then
                        b.roblox:Clone().Parent = hit.Parent.Torso
                    elseif (script.Parent.Parent.Torso:FindFirstChild("Decal") ~= nil) then
                        b.Decal:Clone().Parent = hit.Parent.Torso
                    end
                end
                if (b.Name == "Head") then
                    if (b:FindFirstChild("face") ~= nil) then
                        hit.Parent.Head.face.Texture = b.face.Texture
                    elseif (script.Parent.Parent.Head:FindFirstChild("Decal") ~= nil) then
                        hit.Parent.Head.face.Texture = b.Decal.Texture
                    end
                    if (b:FindFirstChild("Mesh") ~= nil) then
                        b.Mesh:Clone().Parent = hit.Parent.Head
                    end
                end
            end
            if (b.className == "Accessory") then
                local h = Instance.new("Accessory")
                h.Name = b.Name
                h.AttachmentPos = b.AttachmentPos
                b.Handle:Clone().Parent = h
                h.Parent = hit.Parent
            end
            wait(0.001)
        end

        g.Parent = nil
        script.Parent.BrickColor = BrickColor.new("Black")
        Lock = nil
    end
end

script.Parent.Touched:Connect(onTouch)