io.fabric8.kubernetes.client.KubernetesClientException: An error has occurred.

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io.fabric8.kubernetes.client.KubernetesClientException: An error has occurred.
at io.fabric8.kubernetes.client.KubernetesClientException.launderThrowable(KubernetesClientException.java:57)
at io.fabric8.kubernetes.client.dsl.base.BaseOperation.get(BaseOperation.java:125)
at io.fabric8.elasticsearch.cloud.kubernetes.KubernetesAPIServiceImpl.endpoints(KubernetesAPIServiceImpl.java:35)
at io.fabric8.elasticsearch.discovery.kubernetes.KubernetesUnicastHostsProvider.readNodes(KubernetesUnicastHostsProvider.java:112)
at io.fabric8.elasticsearch.discovery.kubernetes.KubernetesUnicastHostsProvider.lambda$buildDynamicNodes$0(KubernetesUnicastHostsProvider.java:80)
at io.fabric8.elasticsearch.discovery.kubernetes.KubernetesUnicastHostsProvider.buildDynamicNodes(KubernetesUnicastHostsProvider.java:79)
at org.elasticsearch.discovery.zen.ping.unicast.UnicastZenPing.sendPings(UnicastZenPing.java:335)
at org.elasticsearch.discovery.zen.ping.unicast.UnicastZenPing.ping(UnicastZenPing.java:240)
at org.elasticsearch.discovery.zen.ping.ZenPingService.ping(ZenPingService.java:106)
at org.elasticsearch.discovery.zen.ping.ZenPingService.pingAndWait(ZenPingService.java:84)
at org.elasticsearch.discovery.zen.ZenDiscovery.findMaster(ZenDiscovery.java:886)
at org.elasticsearch.discovery.zen.ZenDiscovery.innerJoinCluster(ZenDiscovery.java:350)
at org.elasticsearch.discovery.zen.ZenDiscovery.access$4800(ZenDiscovery.java:91)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)

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