You apparently have two WP installations, one in public root and another in /home/. You could maybe log into the /home/ installation with an URL similar to example.com/home/wp-admin/. See if there is important content here or if it’s an obsolete site. If you cannot log in, determine what DB is being used in /home/wp-config.php. Access the DB through phpMyAdmin and see if anything looks important. You can also reset your password through phpMyAdmin so that you can later log into the installation.
If the /home/ installation appears to be obsolete, rename the /home/ folder and see if the change adversely affects the front end of your site. If there is no change, it’s probably safe to delete the second installation. Before doing so, make a full backup just in case you find the need to revert the removal.
