Unable to use jquery.js and jquery.min.js at the same time in PHP

I have an Ajax function that get data to show up on modal, but every time i added the jquery 3.4.1 to get the export button it show up error. Anyone know how to fix this conflict between of them ? Thank you

i_faq.php:191 Uncaught TypeError: $(...).modal is not a function
    at Object.success (i_faq.php:191)
    at fire (jquery-3.4.1.js:3291)
    at Object.fireWith [as resolveWith] (jquery-3.4.1.js:3421)
    at done (jquery-3.4.1.js:9533)
    at XMLHttpRequest.<anonymous> (jquery-3.4.1.js:9785)

faq.php

<?php 
    require_once('../../Controllers/db.php');
    require_once('../../Controllers/const.php');
    require('Share/header.php');
 ?>

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<script src="https://code.jquery.com/jquery-3.4.1.js"></script>
<link rel="stylesheet" href="https://cdn.datatables.net/1.10.19/css/jquery.dataTables.min.css">
<link rel="stylesheet" href="https://cdn.datatables.net/buttons/1.5.6/css/buttons.dataTables.min.css">
<script type="text/javascript" src="https://cdn.datatables.net/1.10.19/js/jquery.dataTables.min.js"></script>
<script type="text/javascript" src="https://cdn.datatables.net/buttons/1.5.6/js/dataTables.buttons.min.js"></script>
<script src="https://cdn.datatables.net/buttons/1.5.6/js/buttons.flash.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jszip/3.1.3/jszip.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/pdfmake/0.1.53/pdfmake.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/pdfmake/0.1.53/vfs_fonts.js"></script>
<script src="https://cdn.datatables.net/buttons/1.5.6/js/buttons.html5.min.js"></script>
<script src="https://cdn.datatables.net/buttons/1.5.6/js/buttons.print.min.js"></script>


<div class="col-md-10">
    <div class="row">
        <div class="col-sm-12 col-sm-offset-2">
            <h2>FAQ</h2>

            <input style="float: right" type="button" class="btn btn-success" value="Create New Record" id="addNew"><br><br>

            <table class="table table-hover table-bordered nowrap display" cellspacing="0" width="100%">
                <thead>
                    <tr>
                        <th>Question</th>
                        <th>Answer</th>
                        <th></th>
                    </tr>
                </thead>
                <tbody>

                </tbody>
            </table>

        </div>
        <!-- Modal -->
        <div class="modal fade" id="tableManager">
            <div class="modal-dialog" role="document">
                <div class="modal-content">
                    <div class="modal-header">
                        <h5 class="modal-title" id="exampleModalLabel">FAQ Manage</h5>
                    </div>
                    <div class="modal-body">
                        <form action="i_faq.php" method="POST" id="modalForm">
                            <input type="hidden" id="editRowID">
                            <div class="form-group row">
                                <label for="f_question" class="col-sm-3 col-form-label">Question</label>
                                <div class="col-sm-9">
                                    <input type="text" class="form-control-plaintext" id="f_question" name="f_question"
                                        placeholder="Enter address">
                                </div>
                            </div>
                            <div class="form-group row">
                                <label for="f_answer" class="col-sm-3 col-form-label">Answer</label>
                                <div class="col-sm-9">
                                    <input type="text" class="form-control-plaintext" id="f_answer" name="f_answer"
                                        placeholder="Enter phone number">
                                </div>
                            </div>
                            <input type="button" class="btn btn-secondary" id="closeBtn" data-dismiss="modal" value="Close"/>
                            <input style="float: right" id="manageBtn" type="button" class="btn btn-success" onclick="manageData('addNew');" value="Add" />
                        </form>
                    </div>
                </div>
            </div>
        </div>

        <script>
        $(document).ready(function() {
            $("#addNew").on('click', function(event) {
                event.preventDefault();
                jQuery.noConflict();
                $("#tableManager").modal('show');
            });

            $("#closeBtn").click(function(){
                $("#manageBtn").attr('value','Add').attr('onclick',"manageData('addNew')");
                document.getElementById("modalForm").reset(); 
            });

            getExistingData(0, 10);
        });

        //Edit
        function edit(rowID)
        {
            $.ajax({
                url: '_faq/ajax.php',
                method: 'POST',
                dataType: 'json',
                data: {
                    key: 'getRowData',
                    rowID: rowID
                },
                success: function(response) {
                    $("#editRowID").val(rowID);
                    $("#f_question").val(response.f_question);
                    $("#f_answer").val(response.f_answer);
                    $("#tableManager").modal('show');
                    $("#manageBtn").attr('value','Save Changes').attr('onclick',"manageData('updateRow')");
                }
            });
        }

        //Delete
        function deleteRow(rowID)
        {
            if(confirm("Are you sure??"))
            {
                    $.ajax({
                    url: '_faq/ajax.php',
                    method: 'POST',
                    dataType: 'text',
                    data: {
                        key: 'deleteRow',
                        rowID: rowID
                    },
                    success: function(response) {
                            $("#question_"+rowID).parent().remove();
                            $("#answer_"+rowID).parent().remove();
                        alert(response);
                    }
                });
            }
        }

        //Show Data
        function getExistingData(start, limit) {
            $.ajax({
                url: '_faq/ajax.php',
                method: 'POST',
                dataType: 'text',
                data: {
                    key: 'getExistingData',
                    start: start,
                    limit: limit
                },
                success: function(response) {
                    if (response != 'Reached Max') {
                        $('tbody').append(response);
                        start += limit;
                        getExistingData(start, limit);
                    }
                    else $(".table").DataTable();
                }
            });
        }

        //Add, Edit
        function manageData(key) {
            var f_question = $("#f_question");
            var f_answer = $("#f_answer");
            var editRowID = $("#editRowID");

            if (isNotEmpty(f_question) && isNotEmpty(f_answer)) {
                //alert("Here");
                $.ajax({
                    url: '_faq/ajax.php',
                    method: 'POST',
                    dataType: 'text',
                    data: {
                        key: key,
                        f_question: f_question.val(),
                        f_answer: f_answer.val(),
                        rowID: editRowID.val()
                    },
                    success: function(response) {
                        if(response != "success")
                            alert(response);
                        else
                        {
                            $("#question_"+editRowID.val()).html(f_question.val());
                            $("#answer_"+editRowID.val()).html(f_answer.val());
                            f_question = '';
                            f_answer = '';
                            $("#tableManager").modal('hide');
                            $("#manageBtn").attr('value','Add').attr('onclick',"manageData('addNew')");
                        }
                    }
                });
            }
        }

        function isNotEmpty(caller) {
            if (caller.val() == '') {
                caller.css('border-left', '5px solid red');
                return false;
            } else caller.css('border-left', '');
            return true;
        }
        </script>
    </div>
</div>
</div>
<?php include('Share/footer.php'); ?>