Clear cache
Clear the cache of your cache plugin and your browser to ensure you see the latest changes. Cached pages might still have the old author paths stored, causing issues.
Check the custom author path
Double-check the custom author path you’ve set to ensure it has been entered accurately and without any typos.
Permalink settings
Go to your WordPress dashboard, navigate to Settings > Permalinks, and click Save Changes to refresh the permalinks. This action can sometimes help resolve issues related to URL structures.
Revert to default path
Delete the custom author path temporarily to see if the accessibility issue is related to it. If the default path works, there might be a compatibility issue with other plugins.
However, the root cause is often server configuration, especially if the rewrite rules haven’t been correctly applied. It’s essential to follow the instructions in WP Ghost according to your server type and ensure proper configuration.