Please Help me find the bug. I am trying to make my web header.

Question

https://jsbin.com/jocuqat/4/download
Chk this link. For the first time, my web works ok. But after repeating the loop for 2nd time. My 2nd img/file/code doesn't work.
https://code.sololearn.com/Wd5rZ0WjH404/?ref=app
https://code.sololearn.com/Wd5rZ0WjH404/?ref=app

Answer 1

It’s working fine in a loop on an external web.