unable to scale up and scale down drone-tracker in openshift environment

[srikanthops]

Installed drone-tracker in ibm.lightbend.com
scale up created additional pods, but the pods didn't come up

spray.json.DeserializationException: Object is missing required member 'items'
	at spray.json.package$.deserializationError(package.scala:23)
	at spray.json.ProductFormats.fromField(ProductFormats.scala:60)
	at spray.json.ProductFormats.fromField$(ProductFormats.scala:50)
	at akka.discovery.kubernetes.JsonFormat$.fromField(JsonFormat.scala:11)
	at spray.json.ProductFormatsInstances$$anon$1.read(ProductFormatsInstances.scala:34)
	at spray.json.ProductFormatsInstances$$anon$1.read(ProductFormatsInstances.scala:26)
	at akka.http.scaladsl.marshallers.sprayjson.SprayJsonSupport.$anonfun$sprayJsonUnmarshaller$1(SprayJsonSupport.scala:30)
	at akka.http.scaladsl.util.FastFuture$.$anonfun$map$1(FastFuture.scala:23)
	at akka.http.scaladsl.util.FastFuture$.strictTransform$1(FastFuture.scala:41)
	at akka.http.scaladsl.util.FastFuture$.strictTransformWithContext$1(FastFuture.scala:34)
	at akka.http.scaladsl.util.FastFuture$.transformWith$extension1(FastFuture.scala)
	at akka.http.scaladsl.util.FastFuture$.map$extension(FastFuture.scala:23)
	at akka.http.scaladsl.unmarshalling.Unmarshaller.$anonfun$map$3(Unmarshaller.scala:26)
	at akka.http.scaladsl.unmarshalling.Unmarshaller.$anonfun$transform$3(Unmarshaller.scala:23)
	at akka.http.scaladsl.unmarshalling.Unmarshaller$$anon$1.apply(Unmarshaller.scala:58)
	at akka.http.scaladsl.unmarshalling.Unmarshal.to(Unmarshal.scala:25)
	at akka.discovery.kubernetes.KubernetesApiSimpleServiceDiscovery.$anonfun$lookup$5(KubernetesApiSimpleServiceDiscovery.scala:96)
	at scala.concurrent.Future.$anonfun$flatMap$1(Future.scala:303)
	at akka.http.scaladsl.util.FastFuture$.$anonfun$transformWith$1(FastFuture.scala:37)
	at akka.http.scaladsl.util.FastFuture$.strictTransform$1(FastFuture.scala:41)
	at akka.http.scaladsl.util.FastFuture$.strictTransformWithContext$1(FastFuture.scala:34)
	at akka.http.scaladsl.util.FastFuture$.transformWith$extension1(FastFuture.scala)
	at akka.http.scaladsl.util.FastFuture$.transformWith$extension0(FastFuture.scala:37)
	at akka.http.scaladsl.util.FastFuture$FulfilledFuture.transformWith(FastFuture.scala:86)
	at scala.concurrent.Future.flatMap(Future.scala:302)
	at scala.concurrent.Future.flatMap$(Future.scala:302)
	at akka.http.scaladsl.util.FastFuture$FulfilledFuture.flatMap(FastFuture.scala:77)
	at akka.discovery.kubernetes.KubernetesApiSimpleServiceDiscovery.$anonfun$lookup$4(KubernetesApiSimpleServiceDiscovery.scala:91)
	at scala.concurrent.Future.$anonfun$flatMap$1(Future.scala:303)
	at scala.concurrent.impl.Promise.$anonfun$transformWith$1(Promise.scala:37)
	at scala.concurrent.impl.CallbackRunnable.run$$original(Promise.scala:60)
	at scala.concurrent.impl.CallbackRunnable.run(Promise.scala:42)
	at akka.dispatch.BatchingExecutor$AbstractBatch.processBatch(BatchingExecutor.scala:55)
	at akka.dispatch.BatchingExecutor$BlockableBatch.$anonfun$run$1(BatchingExecutor.scala:91)
	at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:12)
	at scala.concurrent.BlockContext$.withBlockContext(BlockContext.scala:81)
	at akka.dispatch.BatchingExecutor$BlockableBatch.run(BatchingExecutor.scala:91)
	at akka.dispatch.TaskInvocation.run(AbstractDispatcher.scala:40)
	at akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(ForkJoinExecutorConfigurator.scala:44)
	at akka.dispatch.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
	at akka.dispatch.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
	at akka.dispatch.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
	at akka.dispatch.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
Caused by: java.util.NoSuchElementException: key not found: items```