l-content">
                            <div class="modal-header">
                                <h1 class="modal-title fs-5" id="staticBackdropLabel">Mark as Invalid</h1>
                                <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
                            </div>
                            <div class="modal-body">
                                <form method="POST" action="{% url 'invalid_handler' object.pk %}">
                  