SSL peer certificate or SSH remote key was not OK

Hi dear Support,

I  send in crm scripts Data to URL for our Web Apps, and got Error back:

HTTPConnection::endRequest(): SSL peer certificate or SSH remote key was not OK.

Therefore the Data in SO Cloud is not sent. I checked the URL has valid Certificate but with common Name: *.xxx.de

The Web Apps of URL is hosted on our Webserver, According to our IT Support, it is about Wildcard Certificate with "*" in its name, so that its all Sub-Domain will be certifiable. however, it's a valid Certificates.

How could I get around with this problem?

Thanks!