pvefw firewall pve5

Hi, I am using Proxmox VE 5.4 and like to monitor events on the configuration made to Proxmox Firewall. I have enabled whatever logging options I can find, but still unable to identify such events. From the captured HTTP traffic, the configuration changes on PVE firewall will incur a POST to...

Maybe some one already see something like that before. I enable firewall on datacenter level. Remote access work and cluster also work. When i enable debug log in pve-firewall i find problem with time 0 5 - 08/Sep/2017:12:02:33 +0800 starting pvefw logger 0 7 PVEFW-HOST-IN...