Failed to start firewalld on Oracle Linux 7

 When I updated my firewalld package and restarted the service, It failed to start. It was giving following error.

[root@podman root]#systemctl status firewalld
● firewalld.service - firewalld - dynamic firewall daemon
   Loaded: loaded (/usr/lib/systemd/system/firewalld.service; enabled; vendor preset: enabled)
   Active: failed (Result: timeout) since Wed 2022-02-02 16:06:26 GMT; 3min 58s ago
     Docs: man:firewalld(1)
  Process: 18633 ExecStart=/usr/sbin/firewalld --nofork --nopid $FIREWALLD_ARGS (code=exited, status=0/SUCCESS)
 Main PID: 18633 (code=exited, status=0/SUCCESS)

Feb 02 16:04:55 podman systemd[1]: Starting firewalld - dynamic firewall daemon...
Feb 02 16:04:56 podman firewalld[18633]: WARNING: AllowZoneDrifting is enabled. This is considered an insecure configuration option. It will be removed in a future release. Please con...bling it now.
Feb 02 16:06:26 podman systemd[1]: firewalld.service start operation timed out. Terminating.
Feb 02 16:06:26 podman systemd[1]: Failed to start firewalld - dynamic firewall daemon.
Feb 02 16:06:26 podman systemd[1]: Unit firewalld.service entered failed state.
Feb 02 16:06:26 podman systemd[1]: firewalld.service failed.
Hint: Some lines were ellipsized, use -l to show in full.

Solution:

To solve this issue you need to Perform Following steps:

[root@podman root]# systemctl stop firewalld
[root@podman root]# pkill -f firewalld
[root@podman root]# systemctl start firewalld

Now Check the status of Firewalld service.

[root@podman root]# systemctl status firewalld