Help - first kernel error

[mahesh]

Every few days of uptime, I seem to get a kernel issue. The system is completely unresponsive in this state. This is a media server with 3 USB drives attached. I have basic working knowledge of Ubuntu, but no debugging skills when it comes to things like this.
Any thoughts?

See log here
https://drive.google.com/file/d/1lLL...ew?usp=sharing