Hi, first of all, you’ll need to check the page source in logged out state.
Add the following replacement in “Replace in HTML” option:
mycred-front-css ==> somename
Add the following replacement in “Replace URLs” option:
wp-content/plugins/mycred/assets/css/mycred-front.css ==> newname.css
(you’ll also need to update Nginx config with the updated HMWP rules)
And it’s not recommended to replace CSS class names. Also it’s recommended to replace a word as a whole, so replace “wpresidence_button” not just “wpresidence_”. More info regarding replacement – https://codecanyon.net/item/hide-my-wp-amazing-security-plugin-for-wordpress/4177158/faqs/20827