Try the normal Console or Help Center page and check whether a browser content blocker is preventing the chat from loading. Refresh once after reviewing that setting. Do not disable unrelated account protections or paste scripts into your browser.
If chat remains unavailable, email [email protected] with the browser, page, time, and visible error. Include your support code manually only if you want to share it. An unavailable chat does not mean a ticket was successfully created, so mention whether you had already submitted a form before the failure.