Why doesn't my "create a 3D block with rounded edges" plugin script work? [Solved]

so im creating a script for a personal plugin and its supposed to create a 3D (5,5,5) part to make creating them easier. but for some reason it doesnt work and i just dont understand how.

(btw this is a big script but thats only because theres alot of parts to create each with around 7 properties.)

script:

local toolbar = plugin:CreateToolbar("Round Edges 3D")

local button = toolbar:CreateButton("Round Edges 3D", "Creates a 5x5x5 part with rounded edges at 0,0,0.", " ")

local history = game:GetService("ChangeHistoryService")



local function createPart()
    local Part = Instance.new("Part")
    Part.Shape = Enum.PartType.Block
    Part.Size = Vector3.new(4, 4, 4)
    Part.Parent = game.Workspace
    Part.Position = Vector3.new(0,0,0)
    Part.Anchored = true
    Part.BackSurface = "Smooth"
    Part.BottomSurface = "Smooth"
    Part.FrontSurface = "Smooth"
    Part.LeftSurface = "Smooth"
    Part.RightSurface = "Smooth"
    Part.TopSurface = "Smooth"

    local sCorner1 = Instance.new("Part")
    sCorner1.Shape = Enum.PartType.Sphere
    sCorner1.Size = Vector3.new(1, 1, 1)
    sCorner1.Parent = game.Workspace
    sCorner1.Position = Vector3.new(2, 2, -2)
    sCorner1.Anchored = true
    sCorner1.BackSurface = "Smooth"
    sCorner1.BottomSurface = "Smooth"
    sCorner1.FrontSurface = "Smooth"
    sCorner1.LeftSurface = "Smooth"
    sCorner1.RightSurface = "Smooth"
    sCorner1.TopSurface = "Smooth"

    local sCorner2 = Instance.new("Part")
    sCorner2.Shape = Enum.PartType.Sphere
    sCorner2.Size = Vector3.new(1, 1, 1)
    sCorner2.Parent = game.Workspace
    sCorner2.Position = Vector3.new(-2, 2, -2)
    sCorner2.Anchored = true
    sCorner2.BackSurface = "Smooth"
    sCorner2.BottomSurface = "Smooth"
    sCorner2.FrontSurface = "Smooth"
    sCorner2.LeftSurface = "Smooth"
    sCorner2.RightSurface = "Smooth"
    sCorner2.TopSurface = "Smooth"

    local sCorner3 = Instance.new("Part")
    sCorner3.Shape = Enum.PartType.Sphere
    sCorner3.Size = Vector3.new(1, 1, 1)
    sCorner3.Parent = game.Workspace
    sCorner3.Position = Vector3.new(-2, 2, 2)
    sCorner3.Anchored = true
    sCorner3.BackSurface = "Smooth"
    sCorner3.BottomSurface = "Smooth"
    sCorner3.FrontSurface = "Smooth"
    sCorner3.LeftSurface = "Smooth"
    sCorner3.RightSurface = "Smooth"
    sCorner3.TopSurface = "Smooth"

    local sCorner4 = Instance.new("Part")
    sCorner4.Shape = Enum.PartType.Sphere
    sCorner4.Size = Vector3.new(1, 1, 1)
    sCorner4.Parent = game.Workspace
    sCorner4.Position = Vector3.new(2, 2, 2)
    sCorner4.Anchored = true
    sCorner4.BackSurface = "Smooth"
    sCorner4.BottomSurface = "Smooth"
    sCorner4.FrontSurface = "Smooth"
    sCorner4.LeftSurface = "Smooth"
    sCorner4.RightSurface = "Smooth"
    sCorner4.TopSurface = "Smooth"

    local sCorner5 = Instance.new("Part")
    sCorner5.Shape = Enum.PartType.Sphere
    sCorner5.Size = Vector3.new(1, 1, 1)
    sCorner5.Parent = game.Workspace
    sCorner5.Position = Vector3.new(2, -2, 2)
    sCorner5.Anchored = true
    sCorner5.BackSurface = "Smooth"
    sCorner5.BottomSurface = "Smooth"
    sCorner5.FrontSurface = "Smooth"
    sCorner5.LeftSurface = "Smooth"
    sCorner5.RightSurface = "Smooth"
    sCorner5.TopSurface = "Smooth"

    local sCorner6 = Instance.new("Part")
    sCorner6.Shape = Enum.PartType.Sphere
    sCorner6.Size = Vector3.new(1, 1, 1)
    sCorner6.Parent = game.Workspace
    sCorner6.Position = Vector3.new(-2, -2, 2)
    sCorner6.Anchored = true
    sCorner6.BackSurface = "Smooth"
    sCorner6.BottomSurface = "Smooth"
    sCorner6.FrontSurface = "Smooth"
    sCorner6.LeftSurface = "Smooth"
    sCorner6.RightSurface = "Smooth"
    sCorner6.TopSurface = "Smooth"

    local sCorner7 = Instance.new("Part")
    sCorner7.Shape = Enum.PartType.Sphere
    sCorner7.Size = Vector3.new(1, 1, 1)
    sCorner7.Parent = game.Workspace
    sCorner7.Position = Vector3.new(-2, -2, -2)
    sCorner7.Anchored = true
    sCorner7.BackSurface = "Smooth"
    sCorner7.BottomSurface = "Smooth"
    sCorner7.FrontSurface = "Smooth"
    sCorner7.LeftSurface = "Smooth"
    sCorner7.RightSurface = "Smooth"
    sCorner7.TopSurface = "Smooth"

    local sCorner8 = Instance.new("Part")
    sCorner8.Shape = Enum.PartType.Sphere
    sCorner8.Size = Vector3.new(1, 1, 1)
    sCorner8.Parent = game.Workspace
    sCorner8.Position = Vector3.new(2, -2, -2)
    sCorner8.Anchored = true
    sCorner8.BackSurface = "Smooth"
    sCorner8.BottomSurface = "Smooth"
    sCorner8.FrontSurface = "Smooth"
    sCorner8.LeftSurface = "Smooth"
    sCorner8.RightSurface = "Smooth"
    sCorner8.TopSurface = "Smooth"

    local cEdge1 = Instance.new("Part")
    cEdge.Shape = Enum.PartType.Cylinder
    cEdge.Size = Vector3.new(4, 1, 1)
    cEdge.Orientation   = Vector3.new(0,0,0)
    cEdge.Parent = game.Workspace
    cEdge.Position = Vector3.new(0, 2, -2)
    cEdge.Anchored = true
    cEdge.BackSurface = "Smooth"
    cEdge.BottomSurface = "Smooth"
    cEdge.FrontSurface = "Smooth"
    cEdge.LeftSurface = "Smooth"
    cEdge.RightSurface = "Smooth"
    cEdge.TopSurface = "Smooth"

    local cEdge2 = Instance.new("Part")
    cEdge.Shape = Enum.PartType.Cylinder
    cEdge.Size = Vector3.new(4, 1, 1)
    cEdge.Orientation   = Vector3.new(0,90,0)
    cEdge.Parent = game.Workspace
    cEdge.Position = Vector3.new(-2, 2, 0)
    cEdge.Anchored = true
    cEdge.BackSurface = "Smooth"
    cEdge.BottomSurface = "Smooth"
    cEdge.FrontSurface = "Smooth"
    cEdge.LeftSurface = "Smooth"
    cEdge.RightSurface = "Smooth"
    cEdge.TopSurface = "Smooth"

    local cEdge3 = Instance.new("Part")
    cEdge.Shape = Enum.PartType.Cylinder
    cEdge.Size = Vector3.new(4, 1, 1)
    cEdge.Orientation   = Vector3.new(0,0,0)
    cEdge.Parent = game.Workspace
    cEdge.Position = Vector3.new(0, 2, 2)
    cEdge.Anchored = true
    cEdge.BackSurface = "Smooth"
    cEdge.BottomSurface = "Smooth"
    cEdge.FrontSurface = "Smooth"
    cEdge.LeftSurface = "Smooth"
    cEdge.RightSurface = "Smooth"
    cEdge.TopSurface = "Smooth"

    local cEdge4 = Instance.new("Part")
    cEdge.Shape = Enum.PartType.Cylinder
    cEdge.Size = Vector3.new(4, 1, 1)
    cEdge.Orientation   = Vector3.new(0,90,0)
    cEdge.Parent = game.Workspace
    cEdge.Position = Vector3.new(2, 2, 0)
    cEdge.Anchored = true
    cEdge.BackSurface = "Smooth"
    cEdge.BottomSurface = "Smooth"
    cEdge.FrontSurface = "Smooth"
    cEdge.LeftSurface = "Smooth"
    cEdge.RightSurface = "Smooth"
    cEdge.TopSurface = "Smooth"

    local cEdge5 = Instance.new("Part")
    cEdge.Shape = Enum.PartType.Cylinder
    cEdge.Size = Vector3.new(4, 1, 1)
    cEdge.Orientation   = Vector3.new(0,0,90)
    cEdge.Parent = game.Workspace
    cEdge.Position = Vector3.new(2, 0, -2)
    cEdge.Anchored = true
    cEdge.BackSurface = "Smooth"
    cEdge.BottomSurface = "Smooth"
    cEdge.FrontSurface = "Smooth"
    cEdge.LeftSurface = "Smooth"
    cEdge.RightSurface = "Smooth"
    cEdge.TopSurface = "Smooth"

    local cEdge6 = Instance.new("Part")
    cEdge.Shape = Enum.PartType.Cylinder
    cEdge.Size = Vector3.new(4, 1, 1)
    cEdge.Orientation   = Vector3.new(0,0,0)
    cEdge.Parent = game.Workspace
    cEdge.Position = Vector3.new(0, -2, -2)
    cEdge.Anchored = true
    cEdge.BackSurface = "Smooth"
    cEdge.BottomSurface = "Smooth"
    cEdge.FrontSurface = "Smooth"
    cEdge.LeftSurface = "Smooth"
    cEdge.RightSurface = "Smooth"
    cEdge.TopSurface = "Smooth"

    local cEdge7 = Instance.new("Part")
    cEdge.Shape = Enum.PartType.Cylinder
    cEdge.Size = Vector3.new(4, 1, 1)
    cEdge.Orientation   = Vector3.new(0,90,0)
    cEdge.Parent = game.Workspace
    cEdge.Position = Vector3.new(-2, -2, 0)
    cEdge.Anchored = true
    cEdge.BackSurface = "Smooth"
    cEdge.BottomSurface = "Smooth"
    cEdge.FrontSurface = "Smooth"
    cEdge.LeftSurface = "Smooth"
    cEdge.RightSurface = "Smooth"
    cEdge.TopSurface = "Smooth"

    local cEdge8 = Instance.new("Part")
    cEdge.Shape = Enum.PartType.Cylinder
    cEdge.Size = Vector3.new(4, 1, 1)
    cEdge.Orientation   = Vector3.new(0,0,0)
    cEdge.Parent = game.Workspace
    cEdge.Position = Vector3.new(0, -2, 2)
    cEdge.Anchored = true
    cEdge.BackSurface = "Smooth"
    cEdge.BottomSurface = "Smooth"
    cEdge.FrontSurface = "Smooth"
    cEdge.LeftSurface = "Smooth"
    cEdge.RightSurface = "Smooth"
    cEdge.TopSurface = "Smooth"

    local cEdge9 = Instance.new("Part")
    cEdge.Shape = Enum.PartType.Cylinder
    cEdge.Size = Vector3.new(4, 1, 1)
    cEdge.Orientation   = Vector3.new(0,90,0)
    cEdge.Parent = game.Workspace
    cEdge.Position = Vector3.new(2, -2, 0)
    cEdge.Anchored = true
    cEdge.BackSurface = "Smooth"
    cEdge.BottomSurface = "Smooth"
    cEdge.FrontSurface = "Smooth"
    cEdge.LeftSurface = "Smooth"
    cEdge.RightSurface = "Smooth"
    cEdge.TopSurface = "Smooth"

    local cEdge10 = Instance.new("Part")
    cEdge.Shape = Enum.PartType.Cylinder
    cEdge.Size = Vector3.new(4, 1, 1)
    cEdge.Orientation   = Vector3.new(0,0,90)
    cEdge.Parent = game.Workspace
    cEdge.Position = Vector3.new(-2, 0, -2)
    cEdge.Anchored = true
    cEdge.BackSurface = "Smooth"
    cEdge.BottomSurface = "Smooth"
    cEdge.FrontSurface = "Smooth"
    cEdge.LeftSurface = "Smooth"
    cEdge.RightSurface = "Smooth"
    cEdge.TopSurface = "Smooth"

    local cEdge11 = Instance.new("Part")
    cEdge.Shape = Enum.PartType.Cylinder
    cEdge.Size = Vector3.new(4, 1, 1)
    cEdge.Orientation   = Vector3.new(0,0,90)
    cEdge.Parent = game.Workspace
    cEdge.Position = Vector3.new(-2, 0, 2)
    cEdge.Anchored = true
    cEdge.BackSurface = "Smooth"
    cEdge.BottomSurface = "Smooth"
    cEdge.FrontSurface = "Smooth"
    cEdge.LeftSurface = "Smooth"
    cEdge.RightSurface = "Smooth"
    cEdge.TopSurface = "Smooth"

    local cEdge12 = Instance.new("Part")
    cEdge.Shape = Enum.PartType.Cylinder
    cEdge.Size = Vector3.new(4, 1, 1)
    cEdge.Orientation   = Vector3.new(0,0,90)
    cEdge.Parent = game.Workspace
    cEdge.Position = Vector3.new(2, 0, 2)
    cEdge.Anchored = true
    cEdge.BackSurface = "Smooth"
    cEdge.BottomSurface = "Smooth"
    cEdge.FrontSurface = "Smooth"
    cEdge.LeftSurface = "Smooth"
    cEdge.RightSurface = "Smooth"
    cEdge.TopSurface = "Smooth"


  history:SetWaypoint("Created part.")

end



button.Click:Connect(createPart)