On the bundle, the docs warn it can carry sensitive details about your setup, so better not to attach it publicly: https://docs.xcp-ng.org/troubleshooting/log-files#produce-a-status-report. As far as I can tell there is no self-serve upload spot, it is usually someone from Vates dropping you a private Nextcloud link when you ask, so flagging here that you have the bundle ready is probably the quickest route.
Since this was a kernel panic, is there anything in /var/crash on the host that went down, and which host was it this time? The earlier ones were xen04 and xen03.
