Script error 3512 UEFN

I get error 3512 for lines 58 and 70. I have no idea how to fix it because the code seems fine to me.

Here the full code:

using { /Fortnite.com/Devices }
using { /Verse.org/Simulation }
using { /UnrealEngine.com/Temporary/Diagnostics }
using { /UnrealEngine.com/Temporary/UI }
using { /UnrealEngine.com/Temporary/SpatialMath }
using { /Fortnite.com/UI }
using { /Verse.org/Colors }
using { /Verse.org/Colors/NamedColors }

ResourceManager := class(creative_device):

    SeparateNumberWithCommas(Number:int):string=
        var ConvertedString : string = "{Number}"
        var ReturnString : string = ""
        for(Index:=0..ConvertedString.Length-1):
            if(Mod[ConvertedString.Length-Index,3] = 0 and Index<>0):
                set ReturnString = ReturnString + ","
            if(Char:=ConvertedString[Index]):
                set ReturnString = ReturnString + "{Char}"
        return ReturnString

    var UIStuffPerAgent : [agent]?tuple(canvas,text_block,text_block,text_block) = map{}

    @editable RefreshRate : float = 0.5
    @editable GoldTracker : tracker_device = tracker_device{}
    @editable WoodTracker : tracker_device = tracker_device{}
    @editable RockTracker : tracker_device = tracker_device{}
    @editable PlayerSpawners : []player_spawner_device = array{}

    OnBegin<override>()<suspends>:void=
        for(PS:PlayerSpawners):
            PS.SpawnedEvent.Subscribe(PlayerSpawned)

    S2M<localizes>(S:string):message="{S}"

    UpdateUI(A:agent):void=
        if(Stuff:=UIStuffPerAgent[A]?):
            MyGold:=GoldTracker.GetValue(A)
            Stuff(1).SetText(S2M("{SeparateNumberWithCommas(MyGold)}"))
            MyWood:=WoodTracker.GetValue(A)
            Stuff(2).SetText(S2M("{SeparateNumberWithCommas(MyWood)}"))
            MyRock:=RockTracker.GetValue(A)
            Stuff(3).SetText(S2M("{SeparateNumberWithCommas(MyRock)}"))

    PlayerSpawned(A:agent):void=
        if(Stuff:=UIStuffPerAgent[A]?):
            # Do Nothing
        else:
            AddUI(A)

    RemoveUI(A:agent):void=
        if:
            PlayerUI:=GetPlayerUI[player[A]]
            Stuff:=UIStuffPerAgent[A]?
        then:
            PlayerUI.RemoveWidget(Stuff(0))
            set UIStuffPerAgent[A] = false

    AddUI(A:agent):void=
        if:
            PlayerUI:=GetPlayerUI[player[A]]
        then:
            Stuff:=MakeCanvas()
            Canvas:=Stuff(0)
            GoldBlock:=Stuff(1)
            WoodBlock:=Stuff(2)
            RockBlock:=Stuff(3)
            PlayerUI.AddWidget(Canvas)
            set UIStuffPerAgent[A] = option{Stuff}
            spawn{LoopUpdate(A)}

    LoopUpdate(A:agent)<suspends>:void=
        loop:
            Sleep(RefreshRate)
            UpdateUI(A)
            if(not UIStuffPerAgent[A]?):
                return

    MakeCanvas():tuple(canvas,text_block,text_block,text_block)=
        GoldTextBlock:=text_block{DefaultText:=S2M(""),DefaultTextColor:=White,DefaultShadowOffset:=option{vector2{X:=2.5,Y:=2.5}},DefaultShadowColor:=Black}
        GoldTextBlock.SetShadowOpacity(1.0)
        WoodTextBlock:=text_block{DefaultText:=S2M(""),DefaultTextColor:=White,DefaultShadowOffset:=option{vector2{X:=2.5,Y:=2.5}},DefaultShadowColor:=Black}
        WoodTextBlock.SetShadowOpacity(1.0)
        RockTextBlock:=text_block{DefaultText:=S2M(""),DefaultTextColor:=White,DefaultShadowOffset:=option{vector2{X:=2.5,Y:=2.5}},DefaultShadowColor:=Black}
        RockTextBlock.SetShadowOpacity(1.0)

        MyCanvas := canvas:
            Slots:=array:
                canvas_slot:
                    Anchors:=anchors{Minimum:=vector2{X:=0.0,Y:=0.2},Maximum:=vector2{X:=0.0,Y:=0.2}}
                    Offsets:=margin{}
                    Alignment:=vector2{X:=0.0,Y:=1.0}
                    SizeToContent:=true
                    Widget:=stack_box:
                        Orientation:=orientation.Vertical
                        Slots:=array:
                            stack_box_slot:
                                HorizontalAlignment:=horizontal_alignment.Left
                                VerticalAlignment:=vertical_alignment.Fill
                                Widget:=overlay:
                                    Slots:=array:
                                        overlay_slot:
                                            HorizontalAlignment:=horizontal_alignment.Fill
                                            VerticalAlignment:=vertical_alignment.Fill
                                            Widget:=texture_block{
                                                DefaultImage:=Icons.Untitled_design__8_removebgpreview__1_
                                                DefaultDesiredSize:=vector2{X:=76.0,Y:=32.0}
                                            }
                                            Padding:=margin{Left:=20.0, Right:=20.0, Top:=20.0, Bottom:=20.0}
                                        overlay_slot:
                                            Widget:=stack_box:
                                                Orientation:=orientation.Horizontal
                                                Slots:=array:
                                                    stack_box_slot:
                                                        Widget:=texture_block{
                                                            DefaultImage:=Icons.goldcoin
                                                            DefaultDesiredSize:=vector2{X:=60.0,Y:=60.0}
                                                        }
                                                    stack_box_slot:
                                                        Widget:=GoldTextBlock
                                                        Padding:=margin{Left:=5.0, Right:=30.0}
                                                        HorizontalAlignment:=horizontal_alignment.Fill
                                                        VerticalAlignment:=vertical_alignment.Center
                                            HorizontalAlignment:=horizontal_alignment.Center
                                            VerticalAlignment:=vertical_alignment.Center
                            # Repeat for Wood and Rock, moving Padding to the slot, not the widget
                            stack_box_slot:
                                HorizontalAlignment:=horizontal_alignment.Left
                                VerticalAlignment:=vertical_alignment.Fill
                                Widget:=overlay:
                                    Slots:=array:
                                        overlay_slot:
                                            HorizontalAlignment:=horizontal_alignment.Fill
                                            VerticalAlignment:=vertical_alignment.Fill
                                            Widget:=texture_block{
                                                DefaultImage:=Icons.Untitled_design__7_removebgpreview__1_
                                                DefaultDesiredSize:=vector2{X:=76.0,Y:=32.0}
                                            }
                                            Padding:=margin{Left:=20.0, Right:=20.0, Top:=20.0, Bottom:=20.0}
                                        overlay_slot:
                                            Widget:=stack_box:
                                                Orientation:=orientation.Horizontal
                                                Slots:=array:
                                                    stack_box_slot:
                                                        Widget:=texture_block{
                                                            DefaultImage:=Icons.wood
                                                            DefaultDesiredSize:=vector2{X:=70.0,Y:=70.0}
                                                        }
                                                    stack_box_slot:
                                                        Widget:=WoodTextBlock
                                                        Padding:=margin{Left:=5.0, Right:=30.0}
                                                        HorizontalAlignment:=horizontal_alignment.Fill
                                                        VerticalAlignment:=vertical_alignment.Center
                                            HorizontalAlignment:=horizontal_alignment.Center
                                            VerticalAlignment:=vertical_alignment.Center
                            stack_box_slot:
                                HorizontalAlignment:=horizontal_alignment.Left
                                VerticalAlignment:=vertical_alignment.Fill
                                Widget:=overlay:
                                    Slots:=array:
                                        overlay_slot:
                                            HorizontalAlignment:=horizontal_alignment.Fill
                                            VerticalAlignment:=vertical_alignment.Fill
                                            Widget:=texture_block{
                                                DefaultImage:=Icons.Untitled_design__6_removebgpreview__1_
                                                DefaultDesiredSize:=vector2{X:=76.0,Y:=32.0}
                                            }
                                            Padding:=margin{Left:=20.0, Right:=20.0, Top:=20.0, Bottom:=20.0}
                                        overlay_slot:
                                            Widget:=stack_box:
                                                Orientation:=orientation.Horizontal
                                                Slots:=array:
                                                    stack_box_slot:
                                                        Widget:=texture_block{
                                                            DefaultImage:=Icons.rock
                                                            DefaultDesiredSize:=vector2{X:=60.0,Y:=60.0}
                                                        }
                                                    stack_box_slot:
                                                        Widget:=RockTextBlock
                                                        Padding:=margin{Left:=5.0, Right:=30.0}
                                                        HorizontalAlignment:=horizontal_alignment.Fill
                                                        VerticalAlignment:=vertical_alignment.Center
                                            HorizontalAlignment:=horizontal_alignment.Center
                                            VerticalAlignment:=vertical_alignment.Center

        return (MyCanvas,GoldTextBlock,WoodTextBlock,RockTextBlock)