https://www.bildhau.de/modules/logiflexshipping/js/logiflexshipping.js?v=b4cd0a56

1$(document).ready(function() {
2  function checkServicePointEntryOnClick(e) {
3    $("[name^='delivery_option[']").each(function (){
4      if ($(this).prop('checked')) {
5        var carrierId = $(this).attr('id').replace("delivery_option_", "");
6        var spanName = "#logiflexshipping_service_point_" + carrierId;
7        $(spanName).each(function() {
8            if ($(this).html() == '') {
9              e.preventDefault();              
10              $("#logiflexshipping_alert_p" + carrierId + " > .missing").show();
11              $("#logiflexshipping_alert_p" + carrierId).show();
12            }
13        });
14      }
15    })
16  }
17  
18  $("[name='confirmDeliveryOption']").click(checkServicePointEntryOnClick);
19  $("#payment-confirmation button").click(checkServicePointEntryOnClick);
20});