Fixed the leave button data-slug parameter missing

templates/pages/organisation.html.twig

@@ -67,7 +67,7 @@
                     {% if checkAccess('leave_organisation') %}
                         <hr>
                         <div class="text-center">
-                            <button type="button" class="btn btn-danger js-organisation-leave">{{translate('ORGANISATION.LEAVE')}}</button>
+                            <button type="button" class="btn btn-danger js-organisation-leave" data-slug="{{organisation.slug}}">{{translate('ORGANISATION.LEAVE')}}</button>
                         </div>
                     {% endif %}
                 </div>