Welcome to the Microsoft Q&A (Preview) platform. Happy to answer your question.
Usually to fix a kernel panic error you can simply restart the VM. One common reason for kernel panic in Azure VMs can be host updates.
However it is difficult to say if that is the root cause for your specific issue.
Your VM might have encountered a memory preserving update on the Azure backend and it resulted in this.
I would suggest you restart the VM to check that the error goes away. If the issue does not come back, we can be certain it was an issue related to something on the Azure backend such as a host update.
If the issue continues to persist after a restart it would warrant further investigation.