HTTP Loopback Connections are not enabled on this server

[Kaizokua]

An error appears when I want to Import sample data with a Madara plguin, screenshot attached.
The error is about HTTP Loopback connection which is not enabled on my server:
PHP tries to connect back to the site at the URL `https://mangadex.x10.mx/wp-admin/admin-ajax.php` and it gets the error `Response code: 500`

 

[ctyrd]

what is the real file path for admin-ajax.php

 

[Kaizokua]

what is the real file path for admin-ajax.php

I don't know, how can I know it...

 

[ctyrd]

The site is working: https://mangadex.x10.mx/ and so is WP: https://mangadex.x10.mx/wp-admin/

Really can't tell what your doing or error your getting.

https://mangadex.x10.mx/wp-admin/admin-ajax.php gives error:

There has been a critical error on this site.

Learn more about debugging WordPress.

try the debugging link above.