Hello, I just try to make your system to make request to our system.

Link: https://wp-assist.it-scs.net:8082/

On the server we have cerbot signed certificate.

It works from Postman, but your system don't want to work with this certificate:

>WARNING] Invalid request from ip=54.93.95.116: SSL: TLSV1_ALERT_UNKNOWN_CA] tlsv1 alert unknown ca (_ssl.c:2559)