Why doesn’t my mobile menu open anymore ever since I’ve added some new script?

Ever since I’ve added the color-choice script, my hamburger menu isn’t working anymore. I don’t know what is in conflict but the only thing that happens when I click on the hamburger menu is that I get a notification ‘Javascript:void(0)’. Can anyone help me figure this problem out? Of course I need the mobile menu to work before I can launch my website, but I also really want to keep my color choice script because I think that’s a cool feature. Hope someone can help me out.

$(window).on("load", function () {

    "use strict";

/* ===================================
        Loading Timeout
 ====================================== */
$('.side-menu').removeClass('hidden');

    setTimeout(function(){
        $('.preloader').fadeOut();
    }, 1000);
});

jQuery(function ($) {

    "use strict";

/* ===================================
    Side Menu
====================================== */

if ($("#sidemenu_toggle").length) {
    $("#sidemenu_toggle").on("click", function () {
        $(".side-menu").removeClass("side-menu-opacity");
        $(".pushwrap").toggleClass("active");
        $(".side-menu").addClass("side-menu-active"), $("#close_side_menu").fadeIn(700)
    }), $("#close_side_menu").on("click", function () {
        $(".side-menu").removeClass("side-menu-active"), $(this).fadeOut(200), $(".pushwrap").removeClass("active");
        setTimeout(function(){
            $(".side-menu").addClass("side-menu-opacity");
        }, 500);
    }), $(".side-menu .navbar-nav .nav-link").on("click", function () {
        $(".side-menu").removeClass("side-menu-active"), $("#close_side_menu").fadeOut(200), $(".pushwrap").removeClass("active");
        setTimeout(function(){
            $(".side-menu").addClass("side-menu-opacity");
        }, 500);
    }), $("#btn_sideNavClose").on("click", function () {
        $(".side-menu").removeClass("side-menu-active"), $("#close_side_menu").fadeOut(200), $(".pushwrap").removeClass("active");
        setTimeout(function(){
            $(".side-menu").addClass("side-menu-opacity");
        }, 500);
    });
}

/* ===================================
    Bottom Nav Appear
====================================== */

$(function () {
    var $win = $(window);
    jQuery(function($) {
        $(window).scroll(function() {
            if($(window).scrollTop() + $(window).height() > $(document).height() - 200) {
                // alert("near bottom!");
                $('.sidenav-bottom').css('opacity','1');
                $('.sidenav-bottom').addClass('sidenav-bottom-fixed');
            }
            if($(window).scrollTop() + $(window).height() < $(document).height() - 300 && $(window).scrollTop() + $(window).height() > $(document).height() - 400 )  {
                $('.sidenav-bottom').css('opacity','0');
                $('.sidenav-bottom').removeClass('sidenav-bottom-fixed');
            }
        });
    });
});

if ($(window).width() <= 991) {
    $(".scroll").on("click", function (event) {
        event.preventDefault();
        $('html,body').animate({
            scrollTop: $(this.hash).offset().top - 40
        }, 200);
    });
}

/* ===================================
    Header Appear
====================================== */

$(window).on('scroll', function () {
    if ($(this).scrollTop() > 260) { // Set position from top to add class
        $('.sidenav-bottom').css('opacity','0');
        $('header .inner-header').addClass('header-appear');
    }
    if($(this).scrollTop() < 260) {
        $('.sidenav-bottom').css('opacity','1');
        $('header .inner-header').removeClass('header-appear');
    }
});

/*===================================
    Go Top Scroll
====================================== */
$(function(){
    // Scroll Event
    $(window).on('scroll', function(){
        var scrolled = $(window).scrollTop();
        if (scrolled > 260) $('.go-top').addClass('active');
        if (scrolled < 260) $('.go-top').removeClass('active');
    });
    // Click Event
    $('.go-top').on('click', function() {
        $("html, body").animate({ scrollTop: "0" },  100);
    });
});

/* ===================================
    Portfolio Carousel
====================================== */

$('.portfolio-carousel').owlCarousel({
    loop:true,
    margin:10,
    slideSpeed: 5000,
    slideTransition:'linear',
    nav:false,
    dots:false,
    autoplay:false,
    autoplayTimeout:8000,
    autoplayHoverPause:false,
    responsive:{
        0:{
            items:1
        },
        600:{
            items:1
        },
        1000:{
            items:1
        },
    }
});

$('.portfolio-right-arr').click(function() {
    var owl = $('.portfolio-carousel');
    owl.owlCarousel();
    owl.trigger('next.owl.carousel');
});
$('.portfolio-left-arr').click(function() {
    var owl = $('.portfolio-carousel');
    owl.owlCarousel();
    owl.trigger('prev.owl.carousel');
});

/* ===================================
    Banner Carousel
====================================== */

$('.slider-carousel').owlCarousel({
    loop: true,
    margin: 10,
    slideSpeed: 9999,
    slideTransition: 'linear',
    nav: false,
    dots: false,
    autoplay: true,
    smartSpeed: 450,
    autoplayTimeout: 3000,
    autoplayHoverPause: false,
    responsive:{
        0:{
            items:1
        },
        600:{
            items:1
        },
        1000:{
            items:1
        },
    }
});

/* ===================================
    Testimonial Carousel
====================================== */

$('.review-carousel').owlCarousel({
    loop:true,
    margin:10,
    slideSpeed: 5000,
    slideTransition:'linear',
    nav:false,
    dots:false,
    autoplay:false,
    autoplayTimeout:8000,
    autoplayHoverPause:true,
    responsive:{
        0:{
            items:1
        },
        600:{
            items:1
        },
        1000:{
            items:1
        },
    }
});

/* ===================================
     Wow Effects
======================================*/

var wow = new WOW(
    {
        boxClass:'wow',      // default
        animateClass:'animated', // default
        offset:0,          // default
        mobile:false,       // default
        live:true        // default
    }
);
    wow.init();
});

$(document).ready(function() {
    // Toon de kleurkeuze pop-up bij het laden van de pagina
    setTimeout(function() {
        $("#color-choice-popup").fadeIn();
        $("#color-choice-overlay").fadeIn(); // Laat ook de overlay zien
        $("body").addClass("no-scroll"); // Voeg een klasse toe om scrollen te voorkomen
    }, 1500);

    // Functie om de themaklasse van de website aan te passen
    function updateThemeClass(themeClass) {
        document.documentElement.className = themeClass; // Stel de klasse van het root element in
    }

    // Event listener voor kleurkeuze
    $(".color-choice").on("click", function() {
        var themeClass = $(this).data("theme");
        updateThemeClass(themeClass); // Pas de themaklasse aan met de gekozen klasse
        $("#color-choice-popup").fadeOut(); // Verberg de pop-up
        $("#color-choice-overlay").fadeOut(); // Verberg ook de overlay
        $("body").removeClass("no-scroll"); // Verwijder de klasse om scrollen mogelijk te maken
    });

    // Controleer of de kleurindicator al bestaat om te voorkomen dat deze meerdere keren wordt toegevoegd
    if($("#color-indicator-menubar").length === 0) {
        // Zorg ervoor dat dit geplaatst wordt in het juiste header-element, naast de Get a Quote knop
        $("<div id='color-indicator-menubar'></div>")
            .insertBefore(".inner-header .row .col-lg-4.d-flex.justify-content-end .btn-main");
    }

    // Laat de kleurkeuzepopup opnieuw zien wanneer op de kleurindicator wordt geklikt
    $("#color-indicator-menubar").on("click", function() {
        $("#color-choice-popup").fadeIn();
        $("#color-choice-overlay").fadeIn(); // Laat ook de overlay zien
        $("body").addClass("no-scroll"); // Voeg een klasse toe om scrollen te voorkomen
    });
});