systemd: Failed to start Application launched by gnome-session-binary

If you check the error log it comes to that .scope unit is not found - No such process. I got similar error 4 times. I would like to understand what is going on during the boot process. Why these errors appear? How to debug it to find even more details? The full log ------------ First three errors appear in this part

...
Jan 05 13:42:51 magnetron systemd: Starting GNOME Session Manager (session: gnome)...
░░ Subject: A start job for unit UNIT has begun execution
░░ Defined-By: systemd
░░ Support: https://www.debian.org/support 
░░ 
░░ A start job for unit UNIT has begun execution.
░░ 
░░ The job identifier is 393.
Jan 05 13:42:51 magnetron gnome-keyring-daemon: The PKCS#11 component was already initialized
Jan 05 13:42:51 magnetron gnome-keyring-d: The PKCS#11 component was already initialized
Jan 05 13:42:51 magnetron gnome-keyring-daemon: The Secret Service was already initialized
Jan 05 13:42:51 magnetron gnome-keyring-secrets.desktop: discover_other_daemon: 1GNOME_KEYRING_CONTROL=/run/user/1000/keyring
Jan 05 13:42:51 magnetron gnome-keyring-secrets.desktop: SSH_AUTH_SOCK=/run/user/1000/keyring/ssh
Jan 05 13:42:51 magnetron gnome-keyring-pkcs11.desktop: discover_other_daemon: 1GNOME_KEYRING_CONTROL=/run/user/1000/keyring
Jan 05 13:42:51 magnetron gnome-keyring-pkcs11.desktop: SSH_AUTH_SOCK=/run/user/1000/keyring/ssh
Jan 05 13:42:51 magnetron gnome-keyring-ssh.desktop: discover_other_daemon: 1GNOME_KEYRING_CONTROL=/run/user/1000/keyring
Jan 05 13:42:51 magnetron gnome-keyring-ssh.desktop: SSH_AUTH_SOCK=/run/user/1000/keyring/ssh
Jan 05 13:42:51 magnetron gnome-keyring-d: The Secret Service was already initialized
Jan 05 13:42:51 magnetron gnome-keyring-daemon: discover_other_daemon: 1
Jan 05 13:42:51 magnetron systemd: app-gnome-gnome\x2dkeyring\x2dpkcs11-2742.scope: Couldn't move process 2742 to requested cgroup '/user.slice/user-1000.slice/user@1000.service/app.slice/app-gnome-gnome\x2
dkeyring\x2dpkcs11-2742.scope': No such process
Jan 05 13:42:51 magnetron gnome-keyring-daemon: discover_other_daemon: 1
Jan 05 13:42:51 magnetron systemd: app-gnome-gnome\x2dkeyring\x2dpkcs11-2742.scope: Failed to add PIDs to scope's control group: No such process
Jan 05 13:42:51 magnetron gnome-keyring-daemon: discover_other_daemon: 1
Jan 05 13:42:51 magnetron systemd: app-gnome-gnome\x2dkeyring\x2dpkcs11-2742.scope: Failed with result 'resources'.
░░ Subject: Unit failed
░░ Defined-By: systemd
░░ Support: https://www.debian.org/support 
░░ 
░░ The unit UNIT has entered the 'failed' state with result 'resources'.
Jan 05 13:42:51 magnetron systemd: Failed to start Application launched by gnome-session-binary.
░░ Subject: A start job for unit UNIT has failed
░░ Defined-By: systemd
░░ Support: https://www.debian.org/support 
░░ 
░░ A start job for unit UNIT has finished with a failure.
░░ 
░░ The job identifier is 450 and the job result is failed.
Jan 05 13:42:51 magnetron systemd: app-gnome-gnome\x2dkeyring\x2dsecrets-2743.scope: Couldn't move process 2743 to requested cgroup '/user.slice/user-1000.slice/user@1000.service/app.slice/app-gnome-gnome\x2dkeyring\x2dsecrets-2743.scope': No such process
Jan 05 13:42:51 magnetron systemd: app-gnome-gnome\x2dkeyring\x2dsecrets-2743.scope: Failed to add PIDs to scope's control group: No such process
Jan 05 13:42:51 magnetron systemd: app-gnome-gnome\x2dkeyring\x2dsecrets-2743.scope: Failed with result 'resources'.
░░ Subject: Unit failed
░░ Defined-By: systemd
░░ Support: https://www.debian.org/support 
░░ 
░░ The unit UNIT has entered the 'failed' state with result 'resources'.
Jan 05 13:42:51 magnetron systemd: Failed to start Application launched by gnome-session-binary.
░░ Subject: A start job for unit UNIT has failed
░░ Defined-By: systemd
░░ Support: https://www.debian.org/support 
░░ 
░░ A start job for unit UNIT has finished with a failure.
░░ 
░░ The job identifier is 454 and the job result is failed.
Jan 05 13:42:51 magnetron systemd: app-gnome-gnome\x2dkeyring\x2dssh-2740.scope: Couldn't move process 2740 to requested cgroup '/user.slice/user-1000.slice/user@1000.service/app.slice/app-gnome-gnome\x2dkeyring\x2dssh-2740.scope': No such process
Jan 05 13:42:51 magnetron systemd: app-gnome-gnome\x2dkeyring\x2dssh-2740.scope: Failed to add PIDs to scope's control group: No such process
Jan 05 13:42:51 magnetron systemd: app-gnome-gnome\x2dkeyring\x2dssh-2740.scope: Failed with result 'resources'.
░░ Subject: Unit failed
░░ Defined-By: systemd
░░ Support: https://www.debian.org/support 
░░ 
░░ The unit UNIT has entered the 'failed' state with result 'resources'.
Jan 05 13:42:51 magnetron systemd: Failed to start Application launched by gnome-session-binary.
░░ Subject: A start job for unit UNIT has failed
░░ Defined-By: systemd
░░ Support: https://www.debian.org/support 
░░ 
░░ A start job for unit UNIT has finished with a failure.
...

The last error is at different place in the log:

Jan 05 13:42:51 magnetron gnome-session: gnome-session-binary: GnomeDesktop-WARNING: Could not create transient scope for PID 2747: GDBus.Error:org.freedesktop.DBus.Error.UnixProcessIdUnknown: Process with ID 2747 does not exist.
Jan 05 13:42:51 magnetron gnome-session-binary: GnomeDesktop-WARNING: Could not create transient scope for PID 2747: GDBus.Error:org.freedesktop.DBus.Error.UnixProcessIdUnknown: Process with ID 2747 does not exist.
Jan 05 13:42:51 magnetron gnome-session: gnome-session-binary: GnomeDesktop-WARNING: Could not create transient scope for PID 2749: GDBus.Error:org.freedesktop.DBus.Error.UnixProcessIdUnknown: Process with ID 2749 does not exist.
Jan 05 13:42:51 magnetron gnome-session-binary: GnomeDesktop-WARNING: Could not create transient scope for PID 2749: GDBus.Error:org.freedesktop.DBus.Error.UnixProcessIdUnknown: Process with ID 2749 does not exist.
Jan 05 13:42:51 magnetron systemd: app-gnome-at\x2dspi\x2ddbus\x2dbus-2752.scope: Couldn't move process 2752 to requested cgroup '/user.slice/user-1000.slice/user@1000.service/app.slice/app-gnome-at\x2dspi\x2ddbus\x2dbus-2752.scope': No such process
Jan 05 13:42:51 magnetron systemd: app-gnome-at\x2dspi\x2ddbus\x2dbus-2752.scope: Failed to add PIDs to scope's control group: No such process
Jan 05 13:42:51 magnetron systemd: app-gnome-at\x2dspi\x2ddbus\x2dbus-2752.scope: Failed with result 'resources'.
░░ Subject: Unit failed
░░ Defined-By: systemd
░░ Support: https://www.debian.org/support 
░░ 
░░ The unit UNIT has entered the 'failed' state with result 'resources'.
Jan 05 13:42:51 magnetron systemd: Failed to start Application launched by gnome-session-binary.
░░ Subject: A start job for unit UNIT has failed
░░ Defined-By: systemd
░░ Support: https://www.debian.org/support 
░░ 
░░ A start job for unit UNIT has finished with a failure.
░░

My system is Debian Bookworm: uname -a ``` Linux magnetron 6.0.0-6-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.0.12-1 (2022-12-09) x86_64 GNU/Linux