Unable to install Keel from Helm

Hello,

I’m trying to install Keel from the catalogue (Helm), but there is an error during the install, il ya have the same message for some other apps : You must pass '–namespace=kube-system’

Kubectl apply failed. Error: the namespace from the provided object "kube-system" does not match the namespace "keel". You must pass '--namespace=kube-system' to perform this operation. the namespace from the provided object "kube-system" does not match the namespace "keel". You must pass '--namespace=kube-system' to perform this operation. : exit status 1

Merci !!