Edit file File name : _form_delete.html.twig Content :{% embed '@AdminLTE/Widgets/box-widget.html.twig' with {'boxtype': 'danger'} %} {% block box_before %} {{ form_start(form) }} {% endblock %} {% block box_title %} {{ title|default('confirm.delete'|trans) }} {% endblock %} {% block box_body %} {% block form_body %} {% if used is same as (false) %} {{ 'delete.not_in_use'|trans }} <div class="hidden"> {{ form_widget(form) }} </div> {% else %} <p>{{ message }}</p> {{ form_widget(form) }} {% endif %} {% endblock %} {% endblock %} {% block box_footer %} <input type="submit" value="{{ 'action.delete'|trans }}" class="btn btn-danger" /> {% if back %} <a href="{{ back }}" class="btn btn-link">{{ 'action.back'|trans }}</a> {% endif %} {% endblock %} {% block box_after %} {{ form_end(form) }} {% endblock %} {% endembed %} Save