docker: Error response from daemon: AppArmor enabled on system but the docker-default profile could not be loaded

I install docker-ce 19.03.3, on ubuntu 19.04 following the installation procedure described on the official website. The installation worked well. But when I wanted to test by creating a container,

I have this error:

Error response from daemon: AppArmor enabled on system but the docker-default profile could not be loaded

running /usr/sbin/apparmor_parser apparmor_parser -Kr /var/lib/docker/tmp/docker-default911109442

failed with output:

'AppArmor parser error for /var/lib/docker/tmp/docker-default911109442 in /etc/apparmor.d/tunables/global at line 17: Could not open 'tunables/proc'

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