fix

assets/logger/logger.js

@@ -72,7 +72,7 @@ __PluginManager__.register('Logger', function(module, exports, require, global){
          */
         this.collection = node || document.getElementById('kit-logger') || document.querySelector('.kit-logger') || makeNode(collectionTemplater);
 
-        if(!this.collection.parentElement) {
+        if((this.collection instanceof HTMLElement) && !this.collection.parentElement) {
             document.body.appendChild(this.collection)
         }
     };