EKS ERROR - Internal ingress error

Hi , i have a big issue with internal ingress in EKS Cluster . I'm getting 'out of service' in the elb (aws console). I debug the cluster and found this error :

W0705 17:26:18.876427 6 flags.go:221] SSL certificate chain completion is disabled (--enable-ssl-chain-completion=false) nginx version: openresty/1.15.8.1 W0705 17:26:18.880602 6 client_config.go:541] Neither --kubeconfig nor --master was specified. Using the inClusterConfig. This might not work. W0705 17:26:18.880626 6 client_config.go:546] error creating inClusterConfig, falling back to default config: open /var/run/secrets/kubernetes.io/serviceaccount/token: permission denied F0705 17:26:18.880743 6 main.go:235] Error while initiating a connection to the Kubernetes API server. This could mean the cluster is misconfigured (e.g. it has invalid API server certificates or Service Accounts configuration). Reason: open /var/run/secrets/kubernetes.io/serviceaccount/token: permission denied Refer to the troubleshooting guide for more information: https://kubernetes.github.io/ingress-nginx/troubleshooting/

Any ideas ? It's happened in two different clusters , same error.