Membership and registration plugins (BuddyPress, Ultimate Member, Paid Memberships Pro, WooCommerce registration, etc.) can break when WP Ghost changes the register path because they hardcode references to the default ?action=register URL structure.
Revert the register path to default
Go to WP Ghost > Change Paths > Login Security and clear the custom register path to restore the default ?action=register. Save the settings. This restores compatibility with membership plugins while all other WP Ghost path changes (login, admin, wp-content, etc.) continue working.
Whitelist the registration path
If you want to keep the custom register path, add the membership plugin’s registration URL to WP Ghost > Change Paths > Whitelist Paths. This tells WP Ghost to skip path changes on that specific URL while keeping the custom path active for the default WordPress registration form.
Contact the membership plugin author
If you need both the custom register path and the membership plugin, contact the plugin’s support. Well-maintained plugins use WordPress filters like register_url for the registration URL rather than hardcoding it. The author may provide an update that respects custom registration paths.
If you’ve lost access to the admin dashboard, see the emergency disable guide.