Convert the first date to moment as well for comaprison

index.php

@@ -82,7 +82,7 @@
         $.each(data, (key, val) => {
             log('key:', key, ' val:', val);
             log(c(val["Datum"]), moment(c(val["Datum"]), 'YYYY-MM-DD').add(10, 'days').format('YYYY-MM-DD'));
-            if (c(val["Datum"]) <= moment(c(val["Datum"]), 'YYYY-MM-DD').add(10, 'days').format('YYYY-MM-DD')) {
+            if (moment(c(val["Datum"])).format('YYYY-MM-DD') <= moment(c(val["Datum"]), 'YYYY-MM-DD').add(10, 'days')) {
                 return;
             }
             items.push( "<tr>" );