log problem that crashes qfq when calendar dependencies are missing

javascript/src/Helper/fullCalendar.js

@@ -33,7 +33,7 @@ QfqNS.Helper = QfqNS.Helper || {};
      */
     var fullCalendar = function (form) {
         if (typeof FullCalendar === 'undefined') {
-            QfqNS.log.error("FullCalendar Plugin wasn't loaded correctly.");
+            console.log("FullCalendar JavaScript Files not loaded.")
             return;
         }