How to test SOAP service through soapUI?

Question

SOAP

Hello!
I can't figure out why soapUI is throwing an error when trying to test a web service that is available over HTTPS. The same web service works locally (via http) through soapui without any complaints.
The error is like this:

Error loading [ https://foo.bar.ua/web-services/updateDiscountCard...
java.lang.Exception: Failed to load url;
https://foo.bar.ua/web-services/updateDiscountCard... 0 -

In theory, the whole difference is in the SSL connection, but I do not have client certificate authentication, just an ssl certificate on the server, which, in theory, does not affect the connection from the outside.
There is also 1 online service that works normally and the result of the method in the service is successfully returned - https://goo.gl/7JoA1U