Error: release kafka-lag-exporter failed: ServiceMonitor.monitoring.coreos.com "kafka-lag-exporter" is invalid: []: Invalid value: map[string]interface {}{"kind":"ServiceMonitor", "metadata":map[string]interface {}{"generation":1, "uid":"76063bad-0cf5-11ea-8416-0cc47a338560", "name":"kafka-lag-exporter", "namespace":"monitoring", "creationTimestamp":"2019-11-22T06:58:17Z", "labels":map[string]interface {}{"app":"kafka-lag-exporter", "app.kubernetes.io/instance":"kafka-lag-exporter", "app.kubernetes.io/managed-by":"Tiller", "app.kubernetes.io/name":"kafka-lag-exporter", "helm.sh/chart":"kafka-lag-exporter-0.5.6"}}, "spec":map[string]interface {}{"endpoints":[]interface {}{map[string]interface {}{"port":"http", "interval":30}}, "jobLabel":"jobLabel", "namespaceSelector":map[string]interface {}{"matchNames":[]interface {}{"centrallogging"}}, "selector":map[string]interface {}{"matchLabels":map[string]interface {}{"app.kubernetes.io/name":"kafka-lag-exporter", "helm.sh/chart":"kafka-lag-exporter-0.5.6"}}}, "apiVersion":"monitoring.coreos.com/v1"}: validation failure list:
spec.endpoints.interval in body must be of type string: "integer"