Interface is down somehow, in fact it isn't

Ahoy ahoy.
I am using an OpenWrt x86 device in a production enviroment (My home), unfortunately Zabbix is reporting a failed "bonding.1100" interface. So i have checked that out, and mwan3 has confirmed that. Somehow the interface is not being shown as "down" in LuCi. Also i tried to restart the interface, but no difference.
Even though, IP access through the specific interface is still possible, so it is some kind of false positive failure notification.

How to proceed in this case?