Hi, did you rename wp-admin path name in HMWP settings? Please do these:
1) In “wp_options” table in your database, delete the rows with following “option_name”. Please backup your database first.
2) comment out or remove following line from wp-config.php (if you have added it there previously)
You shall now be able to login to backend and re-configure the plugin.
I think the steps I mentioned above is pretty clear? You need to have access to your site’s database. If it’s confusing then please let us know your site’s wp-admin login details and FTP details as private reply so that we can set up the plugin for you. Thanks!