Have you read the FAQ? It would help you understand what to expect from this community and what you can contribute. I find this section particularly relevant:
This is an open community with people volunteering their free time to provide assistance. We’re eager to contribute to the community, but you are not guaranteed a fast response.
Wait a few days before bumping a topic that hasn’t received a response.
Do not @name mention individuals not involved in the topic.
Regarding your question, you’ve actually provided very little to go on. Does this happen at the beginning of analysis? At the end? If the former, you’ve probably mis-configured your SonarQube URL. If the latter, there’s likely to be a proxy blocking the upload.