Sorry you’re having trouble, but you will need to share more information than that.
First, I must ask, has the URL in the error message been sanitized, or is Graylog really trying to call domain.com?
Second, some details about what version (Graylog, ES/OS, Mongo) you’re running, what OS you are using, what your architecture looks like, whether or not you have a load balancer or proxy in play.
Third, details about what you have done so far. What have you tried, which docs did you use, and was it working before you enabled https:
The more detail you can offer, the more chance we have to help you.