Matomo does'nt get data from HTML site but done from Wordpress installation

Am starting use Mamoto today. I install it on a server runing under NGINX+PHP7.0
I set 3 sites:
Site1 (HTML only) in the same server
Site2 (Blog under PicoCMS /lightly php > Html) in the same server
Site3 (Blog under Wordpress) on a second server runing NGINX also.
After 2 hours, i got only visit for the Site3 (wordpress site).
What can i do please?