PermissionError: [Errno 13] Permission denied: '/etc/glances/glances.conf'

I use snappy-debug to debug, the output is as follow:

root@sheo2-consul2:~# sudo /snap/bin/snappy-debug.security scanlog glances
INFO: Following ‘/var/log/syslog’. If have dropped messages, use:
INFO: $ sudo journalctl --output=short --follow --all | sudo snappy-debug
kernel.printk_ratelimit = 0
= AppArmor =
Time: Oct 23 14:48:20
Log: apparmor=“DENIED” operation=“open” profile=“snap.glances.glances” name="/etc/glances/glances.conf" pid=1363428 comm=“python3” requested_mask=“r” denied_mask=“r” fsuid=0 ouid=0
File: /etc/glances/glances.conf (read)
Suggestions:

In my owner view, it is a bug for glances.snap. Some modify should be taken in snapcraft.yaml for glances.
But I did not know how to fix it , and get not get the snapcraft.yaml of glances.

An reply will be appreciate.