fullcalendar.io and mootools conflict

Question

I'm trying to use fullcalendar.io and mootools libraries in same web site. However I have this error:

TypeError: t is undefined xxx_core.main.min_1.js:9:22019

The file xxx_core.main.min_1.js have this code:

/*!
FullCalendar Core Package v4.1.0
Docs & License: https://fullcalendar.io/
(c) 2019 Adam Shaw
*/
!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?t(exports):"function"==typeof define&&define.amd?define(["exports"],t):(e=e||self,t(e.FullCalendar={}))}(this,function(e){"use strict";function t(e,t,n){var r=document.createElement(e);if(t)for(var i in t)"style"===i?g(r,t[i]):mi[i]?r[i]=t[i]:r.setAttribute(i,t[i]);return"string"==typeof n?r.innerHTML=n:null!=n&&a(r,n),r}function n(e){e=e.trim();var t=document.createElement(o(e));return t.innerHTML=e,t.firstChild}function r(e){return Array.prototype.slice.call(i(e))}function i(e){e=e.trim();var t=document.createElement(o(e));return t.innerHTML=e,t.childNodes}function o(e){return Ei[e.substr(0,3)]||"div"}function a(e,t){for(var n=l(t),r=0;r<n.length;r++)e.appendChild(n[r])}function s(e,t){for(var n=l(t),r=e.firstChild||null,i=0;i<n.length;i++)e.insertBefore(n[i],r)}function u(e,t){for(var n=l(t),r=e.nextSibling||null,i=0;i<n.length;i++)e.parentNode.insertBefore(n[i],r)}function l(e){return"string"==typeof e?r(e):e instanceof Node?[e]:Array.prototype.slice.call(e)}function c(e){e.parentNode&&e.parentNode.removeChild(e)}function d(e,t){return bi.call(e,t)}function f(e,t){return Si.call(e,t)}function p(e,t){for(var n=e instanceof HTMLElement?[e]:e,r=[],i=0;i<n.length;i++)for(var o=n[i].querySelectorAll(t),a=0;a<o.length;a++)r.push(o[a]);return r}function h(e,t){for(var n=e instanceof HTMLElement?[e]:e,r=[],i=0;i<n.length;i++)for(var o=n[i].children,a=0;a<o.length;a++){var s=o[a];t&&!f(s,t)||r.push(s)}return r}function v(e,t,n){n?e.classList.add(t):e.classList.remove(t)}function g(e,t){for(var n in t)y(e,n,t[n])}function y(e,t,n){null==n?e.style[t]="":"number"==typeof n&&Di.test(t)?e.style[t]=n+"px":e.style[t]=n}function m(e,t){return e.left>=t.left&&e.left<t.right&&e.top>=t.top&&e.top<t.bottom}function E(e,t){var n={left:Math.max(e.left,t.left),right:Math.min(e.right,t.right),top:Math.max(e.top,t.top),bottom:Math.min(e.bottom,t.bottom)};return n.left<n.right&&n.top<n.bottom&&n}function S(e,t,n){return{left:e.left+t,right:e.right+t,top:e.top+n,bottom:e.bottom+n}}function b(e,t){return{left:Math.min(Math.max(e.left,t.left),t.right),top:Math.min(Math.max(e.top,t.top),t.bottom)}}function D(e){return{left:(e.left+e.right)/2,top:(e.top+e.bottom)/2}}function T(e,t){return{left:e.left-t.left,top:e.top-t.top}}function w(){return null===Ti&&(Ti=R()),Ti}function R(){var e=t("div",{style:{position:"absolute",top:-1e3,left:0,border:0,padding:0,overflow:"scroll",direction:"rtl"}},"<div></div>");document.body.appendChild(e);var n=e.firstChild,r=n.getBoundingClientRect().left>e.getBoundingClientRect().left;return c(e),r}function I(e){return e=Math.max(0,e),e=Math.round(e)}function C(e,t){void 0===t&&(t=!1);var n=window.getComputedStyle(e),r=parseInt(n.borderLeftWidth,10)||0,i=parseInt(n.borderRightWidth,10)||0,o=parseInt(n.borderTopWidth,10)||0,a=parseInt(n.borderBottomWidth,10)||0,s=I(e.offsetWidth-e.clientWidth-r-i),u=I(e.offsetHeight-e.clientHeight-o-a),l={borderLeft:r,borderRight:i,borderTop:o,borderBottom:a,scrollbarBottom:u,scrollbarLeft:0,scrollbarRight:0};return w()&&"rtl"===n.direction?l.scrollbarLeft=s:l.scrollbarRight=s,t&&(l.paddingLeft=parseInt(n.paddingLeft,10)||0,l.paddingRight=parseInt(n.paddingRight,10)||0,l.paddingTop=parseInt(n.paddingTop,10)||0,l.paddingBottom=parseInt(n.paddingBottom,10)||0),l}function M(e,t){void 0===t&&(t=!1);var n=k(e),r=C(e,t),i={left:n.left+r.borderLeft+r.scrollbarLeft,right:n.right-r.borderRight-r.scrollbarRight,top:n.top+r.borderTop,bottom:n.bottom-r.borderBottom-r.scrollbarBottom};return t&&(i.left+=r.paddingLeft,i.right-=r.paddingRight,i.top+=r.paddingTop,i.bottom-=r.paddingBottom),i}function k(e){var 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Here is my twig template:

{#  include  mootools libraries #}

{% extends "AppBundle:layout.html.twig" %}

{% block title "mon calendrier"%}
{% block body %}
{% include "default/ajoutBoostrap.html.twig" %}
<div class="container m-5">
    <div class="row">
        <div class="col-11">
            <div id="calendar-holder"></div>
        </div>
        <div class="col-1">
             <a href="{{path("planning_demande_autorisation_absence")}}" class="btn btn-primary">Retour</a>
        </div>
    </div>
</div>

 <script type="text/javascript">

    document.addEventListener('DOMContentLoaded', function () {
        var calendarEl = document.getElementById('calendar-holder');
        var id = [{{ agent.id | raw }}];
        var calendar = new FullCalendar.Calendar(calendarEl, {
            plugins: [ 'list' ],
            defaultView: 'dayGridMonth',
            eventDurationEditable: true,
            editable: true,
            locale: 'fr',
            eventSources: [
            {
                url: "{{ path('fc_load_events') }}",
                method: "POST",
                extraParams: {
                    filters: JSON.stringify(id)
                },
                failure: function() {
                    alert("Problème de synchronisation des données !");
                },
            },
            ],
           
            header: {
                left: 'prev,next today',
                center: 'title',
                right: 'dayGridMonth,timeGridWeek,timeGridDay',
            },
            footer:{
                left: 'prevYear,nextYear today',
                center: 'title',
                right: 'dayGridMonth,timeGridWeek,timeGridDay',
            },
            buttonText:{
                today:    "Aujourd'hui",
                month:    "Mois",
                week:     'Semaine',
                day:      'Jour',

            },
            eventDrop: function(info){
               if( ! confirm(" Etes vous sûr.e de vouloir déplacer cet évènement ?")){
                   info.revert();
               }
            },
            eventRisize: function(info){

            },
             plugins: [ 'interaction', 'dayGrid', 'timeGrid' ], // https://fullcalendar.io/docs/plugin-index
             timeZone: 'UTC',
             nowIndicator: true,
            });
            calendar.render();
        });
</script>

{#  include  fullcalendar libraries #}

    {% stylesheets  filter='cssrewrite'
        'fullcalendar/c_css/core.main.min.css'
        'fullcalendar/c_css/daygrid.main.min.css'
        'fullcalendar/c_css/timegrid.main.min.css'
        'css/beaute.css'
    %}
       <link rel="stylesheet" href="{{ asset_url }}" type="text/css">
    {% endstylesheets %}
    {% javascripts
        'fullcalendar/c_js/core.main.min.js'
        'fullcalendar/c_js/interaction.main.min.js'
        'fullcalendar/c_js/daygrid.main.min.js'
        'fullcalendar/c_js/timegrid.main.min.js'
    %}
       <script src="{{ asset_url }}" charset="UTF-8"> </script>
    {% endjavascripts %}


{% endblock %}

According to what I understood, there is a conflict of variables between the two libraries (mootools and fullcalendar.io).

But even after several searches on the web, I can not solve the problem.

Can someone please help me, please?