Alerting security exception

Hello,

I have ELK stack + xpack installed then i installed Open Distro alerting module.
When i try to access Alerting page i get this error :

[security_exception] action [indices:data/read/search] is unauthorized for user [_system]

Any help please?

@opendistro1 do you have opendistro security plugin installed? It’s not very clear from the above