ESOUI - Help with first addon, Lua not initializing?

Hey there, I am trying to write a small add-on as a learning project, that counts number of lockpicks left and increments a counter whenever a lockpick-success event occurs.

So far I've written the txt, xml and lua files based on the AddOn scripting guides from the EsoUI wiki, and I can see the GUI (xml) in-game, however it seems that the LUA file does not load as it doesn't have any functionality beyond showing the strings set to labels in the XML.

(Saving the new position of the UI elements to savedvariables does not seem to work either, so the xml is set to where I want it to be)

Steps I've taken to troubleshoot:
1. DebugViewer not throwing errors
2. Checked for typos etc. (maybe incomplete)

The required functionality is:
1. User can see number of lockpicks remaining on character load
2. User can count number of safeboxes/treasure chests lockpicked

I'm quite new and learning, so any input would be appreciated, thanks in advance.

Screenshot of GUI
https://ibb.co/dLmXgs1

txt file

Code:

## Title: TreasureCounter

## Author: xgoku1

## Version: v0.1

## Description: Counts number of treasure chests opened.

## APIVersion: 100033 100034

## SavedVariables: TreasureCounterSavedData

TreasureCounter.lua

TreasureCounter.xml

xml file

Code:

<GuiXml>

        <Controls>

                <TopLevelControl name="TreasureCounterWindow" mouseEnabled="true" movable="true" clampedToScreen="true" hidden="false">

                        <Dimensions x="150" y="200"/>

                        <Anchor point="CENTER" relativeTo="guiRoot" relativePoint="CENTER" offsetX="650" offsetY="80"/>

                

                        <OnMoveStop>

                                TreasureCounter.OnIndicatorMoveStop()

                        </OnMoveStop>

                

                        <Controls>

                                <Backdrop name="$(parent)Backdrop" edgeColor="FF0000" centerColor="6495ED" alpha="0.6" >

                                        <Dimensions x="380" y="130" />

                                        <Anchor point="TOPLEFT"  relativeTo="$(parent)" relativePoint="TOPLEFT"/>

                                        <Edge edgeSize="6" />

                                </Backdrop>

                                

                                <Label name="$(parent)Heading" width="50" height="30" font="ZoFontWinH1" inheritAlpha="true" color="FF0000" wrapMode="TRUNCATE" verticalAlignment="TOP" horizontalAlignment="CENTER" text="Treasure Counter">

                                        <Anchor point="TOP" relativeTo="$(parent)Backdrop" relativePoint="TOP"/>

                                </Label>

                                

                                <Label name="$(parent)Label1" width="30" height="10" font="ZoFontWinH1" inheritAlpha="true" color="FF0000" wrapMode="TRUNCATE" verticalAlignment="TOP" horizontalAlignment="LEFT" text="Number of lockpicks: ">

                                        <Anchor point="TOP" relativeTo="$(parent)Heading" relativePoint="LEFT" offsetY="40"/>

                                </Label>

                                

                                <Label name="$(parent)Label2" width="30" height="10" font="ZoFontWinH1" inheritAlpha="true" color="FF0000" wrapMode="TRUNCATE" verticalAlignment="TOP" horizontalAlignment="LEFT" text="Number of chests opened: ">

                                        <Anchor point="TOP" relativeTo="$(parent)Label1" relativePoint="LEFT" offsetY="40"/>

                                </Label>

                        </Controls>

                </TopLevelControl>

        </Controls>

</GuiXml>

lua file

Code:

--Variables

TreasureCounter = {} --main table

TreasureCounter.name = "TreasureCounter" --addon name for checking OnAddonLoaded

TreasureCounter.locks = 0

TreasureCounter.tc = 0 

--For testing it will show number of lockpicks remaining.



--function OnAddonLoaded which is called from EVENT_ADDON_LOADED

function TreasureCounter.OnAddonLoaded(event, addonName)

        if addonName == TreasureCounter.name then

                TreasureCounter.Initialize() --calls Initialize() if addonName matches

        end

end



--function Initialize() called from OnAddonLoaded

function TreasureCounter.Initialize() --function called after OnAddonLoaded

        TreasureCounter.locks = GetNumLockpicksLeft("player")

        TreasureCounter.savedVariables = ZO_SavedVars:NewCharacterId("TreasureCounterSavedData", 1, nil, {})

        TreasureCounterWindowLabel1:SetText("Number of lockpicks: " .. TreasureCounter.locks)

        TreasureCounterWindowLabel2:SetText("Number of chests opened: " .. TreasureCounter.tc)

        TreasureCounter.RestorePosition()

end



--called from Initialize() to restore 

function TreasureCounter.RestorePosition()

        local left = TreasureCounter.savedVariables.left

        local top = TreasureCounter.savedVariables.top

        

        TreasureCounterWindow:ClearAnchors()

        TreasureCounterWindow:SetAnchor(TOPLEFT, GuiRoot, TOPLEFT, left, top)

end



--called from OnMoveStop in xml

function TreasureCounter.OnIndicatorMoveStop() --get new moved var

        TreasureCounter.savedVariables.left = TreasureCounterWindow:GetLeft()

        TreasureCounter.savedVariables.top = TreasureCounterWindow:GetTop()

end





function TreasureCounter.CountIncrement(event)

        TreasureCounter.tc = TreasureCounter.tc + 1

        TreasureCounter.locks = GetNumLockpicksLeft("player")

        TreasureCounterWindowLabel1:SetText("Number of lockpicks: " .. TreasureCounter.locks)

        TreasureCounterWindowLabel2:SetText("Number of chests opened: " .. TreasureCounter.tc)

        EVENT_MANAGER:UnregisterForEvent(TreasureCounter.name, EVENT_LOCKPICK_SUCCESS)

end



--Events

EVENT_MANAGER:RegisterForEvent(TreasureCounter.name, EVENT_ADDON_LOADED, TreasureCounter.OnAddonLoaded) --registering for event "addon load"

EVENT_MANAGER:RegisterForEvent(TreasureCounter.name, EVENT_LOCKPICK_SUCCESS, TreasureCounter.CountIncrement) --registering for event "lockpick success"