Unable to send event on NotificationController

[ViBiOh]

Since the last update, I have sometimes (mostly in error case) this log in the HelmController

{"level":"error","ts":"2021-04-16T16:07:56.881Z","logger":"controller.helmrelease","msg":"unable to send event","reconciler group":"helm.toolkit.fluxcd.io","reconciler kind":"HelmRelease","name":"app","namespace":"default","error":"POST http://notification-controller/ giving up after 5 attempt(s)"}

The NotificationController is up and running, I see successful log on it from ImageAutomation.

{"level":"info","ts":"2021-04-16T16:46:45.501Z","logger":"event-server","msg":"Discarding event, no alerts found for the involved object","reconciler kind":"HelmChart","name":"app","namespace":"default"}

I'm running the image ghcr.io/fluxcd/helm-controller:v0.9.0 on an arm64 architecture. Is this something known on your side?

I don't know if you need extra logs or config, feel free to ask me.