transferring website

Hi,
I transferred 123ehost.com/new to 123ehost.com.
I noticed most of the background images, logo were missing. So I installed “Better Search Replace” plugin to transfer all the links from 123ehost.com/new to 123ehost.com but this didn’t work.
Now I decided to put a copy back of wp-admin, wp-content and wp-includes back to 123ehost.com/new and the website loads fine. Can you help me to update the links.