[ERROR] No user found for cluster:monitor/health

Hello guys !
My cluster was all fine until I checked the logs of one of my node who threw a HealthRequest error.
My cluster is still green and functional.
I just wonder how to fix this issue/error, it doesn’t seem to block anything.

[2019-11-19T10:01:05,528][ERROR][c.a.o.s.f.OpenDistroSecurityFilter] No user found for cluster:monitor/health from 127.0.0.1:52328 TRANSPORT via netty {_opendistro_security_initial_action_class_header=ClusterHealthRequest}

Update :
Some error found when trying to use the securityadmin.sh script :

image

Any ideas?
Thank you !
Thi