Custom Sidebar Menu not working

Hey everyone, I had a lightbox side menu, but unfortunately, it had a huge delay when clicking the "hamburger" menu button. Instead, I switched to a pinned container box with individual buttons. It works great at first, but after using it to navigate to one of the linked pages, the menu quits appearing when clicking the hamburger. I'm not sure what to do with this as I believe my code is correct, however, I could be wrong as I am a beginner when it comes to Corvid/Javascript. The website is https://nn1406.wixsite.com/mysite (it is an early version of a new site for the company I work for). This is my site code:

import wixLocation from 'wix-location';

export function hamburger_click(event) {
    $w('#menu').show('FlyIn')
    $w('#hamburger').hide('FlyOut');
}

export function x_click(event) {
    $w('#menu').hide('FlyOut')
    $w('#hamburger').show('FlyIn')
}

export function button20_click(event) {
    wixLocation.to("/downloads")
    $w('#menu').hide('FlyOut')
    $w('#hamburger').show('FlyIn')
}

export function button21_click(event) {
    wixLocation.to("/disaster-relief")
    $w('#menu').hide('FlyOut')
    $w('#hamburger').show('FlyIn')
}

export function button22_click(event) {
    wixLocation.to("/warrior")
    $w('#menu').hide('FlyOut')
    $w('#hamburger').show('FlyIn')
}

export function button23_click(event) {
    wixLocation.to("/about-us")
    $w('#menu').hide('FlyOut')
    $w('#hamburger').show('FlyIn')
}

Thanks in advance!