Many pages of the Admin section is not working properly due to 404 issues with wp-includes.
What could be the potential issue here?
Attempts at fix
- I did multiple re-installs using plesk and even manual installation
- Changed many themes even quality ones to simple ones
- Changed the WordPress version down to even 5.5.6 upto the latest one
Nothing seems to work.
- I am suspecting I might need to do some sort of proper https certificate configuration. As I was not sure, If I did it completely right with the cloudflare
Or is there some other potential solution here. Kindly help please. Thanks in advance.