Hello Olga Osinskaya,
Thanks a lot for your help.
I think the problem was a fail in Azure because the status was:
- Running, but Apache in VM not responding. Then I selected "stop" VM.
- Deallocated, but portal show "start" and "stop" options disabled.
- After long time, portal show "start" enabled then I selected "start".
- VM was in "updating" state a long time.
- VM was result in "Error" state, then I selected "start"
- Finally VM was in "Running" state.
The current versión is Ubuntu 18.04.5 LTS, may be I need to update to Ubuntu 20 or 22.
Thanks for your help.
Best regards.