What is error 410
The error code Http 410 Gone (HTTP = HyperText Transfer Protocol) is part of the client error codes (the 4xx series). They indicate that access to the requested page or resource is no longer available on the server. This, a priori, and no redirection address for this page or resource is available. Here are some pointers on what error 410 is and how to consider it in your SEO strategy.
Consider a full backup
As with anything, it’s better to have played it safe from the start than to crash and regret it later. It is therefore essential to make a full backup of your application, database, etc. This, before trying to fix or modify the system. Better yet, if you have the opportunity, create a full copy of the application on a secondary server that is not “live” or active and publicly accessible.
How to fix it
Disable your plugins. There are normally many WordPress plugins that often allow HTTP 410 error codes on your trusted site. Restore it and reinstall the WordPress core files. If the previous multiple methods don’t work for you, anyone could have a wonderful problem that includes your WordPress core files.
Difference with 404
Remember 404 errors. These indicate that the resource was not found at the time of the request and may be available later. But the 410 error assumes that the resource does not have a forwarding address. It is therefore permanently unavailable. In short, the 410 code is returned when the page or resource you are trying to access has been permanently removed. This, without any redirection in place.
Check the requested URL
The most common cause of a 410 error is entering an incorrect URL. But many web servers are secured to deny access to poorly written URLs. And since 410 codes are not used as frequently as 404 codes, the appearance of a 410 code usually implies that the requested URL was once valid, but is no longer so. So, check again to see if it is really the URL you are trying to access that is returning such an error.
When learning what error 410 is, remember: like most HTTP response codes, especially those that indicate an error, the occurrence of a 410 error can be a challenge to diagnose and resolve properly.