gatsu1981 on "[Plugin: REST API Post Embeds] WPAPI not working, even if JSON is good"

Hello,

I used your plugin for embedding post from the news site from here:
http://news.milanocard.it/
to here:

http://www.milanocard.it/

Using jetpack, it is giving the english post correctly, and I managed to use it like I would.

But, I now need german and french post:
http://news.milanocard.it/?lang=de

WPML was used to get multilanguage working.

I am using this tag to (try to) embed the german post, but it's not outputting nothing:

[jeherve_post_embed url="news.milanocard.it" jeherve_post_embed_base_api_url="http://news.milanocard.it/wp-json/wp/v2/posts?lang=de" wpapi="true" number="12"]

German embed page is empty: http://www.milanocard.it/de/post-embed-de
But JSON is OK: http://news.milanocard.it/wp-json/wp/v2/posts?lang=de

Can you please help me?

https://wordpress.org/plugins/rest-api-post-embeds/