     wipeCache();
   } else {
     caching = true;
-    listDir(SPIFFS, " / ", "");
+    listDir(SPIFFS, "/", "");
   };
 
   Serial.println("setup() done.\n\n");

  for (int i = 0; i < uid.size; i++) {
    path += String(uid.uidByte[i], DEC);
    if (i == 0)
      path += " / ";
    else
      path += ".";
  };

    SPIFFS.mkdir(String(i));

  Serial.println("Directory structure created.");
  listDir(SPIFFS, "/", "");
  caching = true;
};

