During boot, the Firewall daemon logs the following in the systemd Journal -

[    8.848736] systemd[1]: Starting firewalld - dynamic firewall daemon...
[    9.410805] systemd[1]: Started firewalld - dynamic firewall daemon.
[    9.598836] firewalld[1182]: ERROR: Calling pre func <bound method
Firewall.full_check_config of <class 'firewall.core.fw.Firewall'>(True, True,
True, 'INIT', False, '', {}, [], True, True, True, False, 'off')>(()) failed:
check_config_dict() takes 2 positional arguments but 3 were given
[    9.607993] firewalld[1182]: ERROR: Calling pre func <bound method
Firewall.full_check_config of <class 'firewall.core.fw.Firewall'>(True, True,
True, 'INIT', False, '', {}, [], True, True, True, False, 'off')>(()) failed:
check_config_dict() takes 2 positional arguments but 3 were given
[   10.103644] dbus-daemon[1177]: [system] Activating via systemd: service
name='org.freedesktop.PolicyKit1' unit='polkit.service' requested by ':1.5'
(uid=0 pid=1182 comm="/usr/bin/python3 /usr/sbin/firewalld --nofork --no")

----------------------------------------------------------------------------
Package: firewalld-0.9.3-150300.3.3.1.noarch

Operating System: openSUSE Leap 15.3
KDE Plasma Version: 5.18.6
KDE Frameworks Version: 5.76.0
Qt Version: 5.12.7
Kernel Version: 5.3.18-150300.59.60-default
OS Type: 64-bit
Processors: 8 ��� AMD Ryzen 5 3400G with Radeon Vega Graphics
Memory: 13,6 GiB