Can't acces my coumputing instance on all ports except 22 from the Internet.

Summary:

After August 20 I can't access to my website placed on one of the VM's.

There was a message in this day:

"At Sat, Aug 20, 2022, 06:10:00 UTC, this instance was either reboot migrated due to planned maintenance or experienced an error with the underlying infrastructure. We recommend that you verify that the instance is performing as expected. Learn more about infrastructure maintenance"

I only can connect to my VM using SSH over 22 port.

Content (required):

I tried to recreate Ingress rules - it doesn't help.

Double checked ports on my Ubuntu VM - everything is Ok, Apache is listening 80 port.

Checked firewall - meny ports including 80 and 443 are opened.