Warning on boot: Failed to start Load AppArmor profiles

This warning is shown every time I start my computer.

More info:

$ sudo aa-status
apparmor module is loaded.
23 profiles are loaded.
22 profiles are in enforce mode.
   /usr/lib/snapd/snap-confine
   /usr/lib/snapd/snap-confine//mount-namespace-capture-helper
   /var/lib/snapd/snap/core/10823/usr/lib/snapd/snap-confine
   /var/lib/snapd/snap/core/10823/usr/lib/snapd/snap-confine//mount-namespace-capture-helper
   dovecot-script-login
   lsb_release
   nvidia_modprobe
   nvidia_modprobe//kmod
   php-fpm
   snap-update-ns.core
   snap-update-ns.discord
   snap-update-ns.skype
   snap-update-ns.slack
   snap-update-ns.zoom-client
   snap.core.hook.configure
   snap.discord.discord
   snap.discord.hook.configure
   snap.skype.hook.configure
   snap.skype.skype
   snap.zoom-client.hook.configure
   snap.zoom-client.zoom-client
   torbrowser_tor
1 profiles are in complain mode.
   snap.slack.slack
0 profiles are in kill mode.
0 profiles are in unconfined mode.
14 processes have profiles defined.
8 processes are in enforce mode.
   /var/lib/snapd/snap/skype/164/usr/share/skypeforlinux/skypeforlinux (1616) snap.skype.skype
   /var/lib/snapd/snap/skype/164/usr/share/skypeforlinux/skypeforlinux (2133) snap.skype.skype
   /var/lib/snapd/snap/skype/164/usr/share/skypeforlinux/skypeforlinux (2137) snap.skype.skype
   /var/lib/snapd/snap/skype/164/usr/share/skypeforlinux/skypeforlinux (2151) snap.skype.skype
   /var/lib/snapd/snap/skype/164/usr/share/skypeforlinux/skypeforlinux (2360) snap.skype.skype
   /var/lib/snapd/snap/skype/164/usr/share/skypeforlinux/skypeforlinux (2372) snap.skype.skype
   /var/lib/snapd/snap/skype/164/usr/share/skypeforlinux/skypeforlinux (2412) snap.skype.skype
   /var/lib/snapd/snap/skype/164/usr/share/skypeforlinux/skypeforlinux (2692) snap.skype.skype
6 processes are in complain mode.
   /var/lib/snapd/snap/slack/37/usr/lib/slack/slack (5515) snap.slack.slack
   /var/lib/snapd/snap/slack/37/usr/lib/slack/slack (5541) snap.slack.slack
   /var/lib/snapd/snap/slack/37/usr/lib/slack/slack (5542) snap.slack.slack
   /var/lib/snapd/snap/slack/37/usr/lib/slack/slack (5585) snap.slack.slack
   /var/lib/snapd/snap/slack/37/usr/lib/slack/slack (5588) snap.slack.slack
   /var/lib/snapd/snap/slack/37/usr/lib/slack/slack (5661) snap.slack.slack
0 processes are unconfined but have a profile defined.
0 processes are in mixed mode.
0 processes are in kill mode.
$ systemctl status apparmor
● apparmor.service - Load AppArmor profiles
     Loaded: loaded (/usr/lib/systemd/system/apparmor.service; enabled; vendor preset: disabled)
     Active: failed (Result: exit-code) since Sun 2021-02-21 01:24:41 CET; 19min ago
    Process: 242 ExecStart=/lib/apparmor/apparmor.systemd reload (code=exited, status=1/FAILURE)
   Main PID: 242 (code=exited, status=1/FAILURE)

févr. 21 01:24:39 MyPC apparmor.systemd[242]: Restarting AppArmor
févr. 21 01:24:39 MyPC apparmor.systemd[242]: Reloading AppArmor profiles
févr. 21 01:24:40 MyPC apparmor.systemd[269]: profile has merged rule with conflicting x modifiers
févr. 21 01:24:40 MyPC apparmor.systemd[269]: ERREUR lors du traitement Regex du profil torbrowser_firefox, le chargement a ?chou?
févr. 21 01:24:41 MyPC apparmor.systemd[386]: profile has merged rule with conflicting x modifiers
févr. 21 01:24:41 MyPC apparmor.systemd[386]: ERREUR lors du traitement Regex du profil torbrowser_firefox, le chargement a ?chou?
févr. 21 01:24:41 MyPC apparmor.systemd[242]: Error: At least one profile failed to load
févr. 21 01:24:41 MyPC systemd[1]: apparmor.service: Main process exited, code=exited, status=1/FAILURE
févr. 21 01:24:41 MyPC systemd[1]: apparmor.service: Failed with result 'exit-code'.
févr. 21 01:24:41 MyPC systemd[1]: Failed to start Load AppArmor profiles.

Translation for the one French sentence: ERROR during the Regex operation of the torbrowser_firefox profile, loading failed.

Can someone explain why this happens, and hopefully solve the issue?

I’ve the same error while booting. But my aa-status have no errors.

$ sudo aa-status
apparmor module is loaded.
5 profiles are loaded.
5 profiles are in enforce mode.
dovecot-script-login
lsb_release
nvidia_modprobe
nvidia_modprobe//kmod
php-fpm
0 profiles are in complain mode.
0 profiles are in kill mode.
0 profiles are in unconfined mode.
0 processes have profiles defined.
0 processes are in enforce mode.
0 processes are in complain mode.
0 processes are unconfined but have a profile defined.
0 processes are in mixed mode.
0 processes are in kill mode.
~ >>>

(writing this to resurface the issue)
Should I not worry about this?
What purpose does AppArmor actually serve?