Scene Progress bars using javascript

Hello,

I am using this JavaScript to control a progress bar "5xxf4t4A2ET" (from the Chrome inspect elements) below. I am trying to add  another progress bar using another element name "6PhUXotDWKQ".

When I add a second JavaScript to control "6PhUXotDWKQ", nothing works anymore.

What do I need to change in the JS so I can control 2 progress bar?

Source used for 1 progress bar: https://www.youtube.com/watch?v=k0-G_mhtLR4

Javascript:

/* CHANGE THESE VARIABLES */
const myDiv = document.querySelector('[data-model-id="5xxf4t4A2ET"]'); // "data-model-id" OF SL RECTANGLE
const bgColour = "#D9D9D9"; // BACKGROUND COLOUR.
const barColour = "#008A00"; // PROGRESS COLOUR.
const compColour = ""; // COMPLETED COLOUR (will not change if empty).
const borderRad = "0px"; // BORDER RADIUS.
const progress = "Topic1_Progress"; // PROGRESS VARIABLE (Case Sensitive).
/* DO NOT CHANGE BELOW UNLESS INTENDED */
const player = GetPlayer();
let scale = player.GetVar(progress);
let testElement = !!document.getElementById("pBar"); // Test to see if the bar already exists.
if (!testElement) { // If bar doesn't exist
    //Create the background element for the Progress Bar
    let bgBar = document.createElement("div");
    bgBar.id = "bgBar";
    bgBar.style.width = "100%";
    bgBar.style.height = "100%";
    bgBar.style.backgroundColor = bgColour;
    bgBar.style.position = "absolute";
    bgBar.style.top = "0px";
    bgBar.style.borderRadius = borderRad;
    myDiv.appendChild(bgBar);
    // Create the progress element of the Progress Bar
    let pBar = document.createElement("div");
    pBar.id = "pBar";
    pBar.style.width = scale + "%";
    pBar.style.height = "100%";
    pBar.style.backgroundColor = barColour;
    pBar.style.position = "absolute";
    pBar.style.top = "0px";
    pBar.style.borderRadius = borderRad;
    myDiv.appendChild(pBar);
} else { // If it does exist
    document.getElementById('pBar').style.width = scale + "%"; // Update the width
}
if (scale == 100 && compColour) {
    document.getElementById('pBar').style.backgroundColor = compColour;
}