I am using latest version of Jenkins from dockerhub docker pull jenkins/jenkins:lts-jdk11

Using these version of kubernetes plugins
Kubernetes
Version3839.v43e9e4931ccb

Kubernetes Client API Plugin
Version6.3.1-206.v76d3b_6b_14db_b

Kubernetes Credentials Plugin
Version0.10.0
================================

logs
error logs 
y.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325)
    at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1225)
    at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1034)
    at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.call(PogoMetaClassSite.java:41)
    at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:47)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:116)
    at org.kohsuke.groovy.sandbox.impl.Checker$1.call(Checker.java:180)
    at org.kohsuke.groovy.sandbox.GroovyInterceptor.onMethodCall(GroovyInterceptor.java:23)
    at org.jenkinsci.plugins.scriptsecurity.sandbox.groovy.SandboxInterceptor.onMethodCall(SandboxInterceptor.java:163)
    at org.kohsuke.groovy.sandbox.impl.Checker$1.call(Checker.java:178)
    at org.kohsuke.groovy.sandbox.impl.Checker.checkedCall(Checker.java:182)
    at org.kohsuke.groovy.sandbox.impl.Checker.checkedCall(Checker.java:152)
    at org.kohsuke.groovy.sandbox.impl.Checker.checkedCall(Checker.java:152)
    at org.kohsuke.groovy.sandbox.impl.Checker.checkedCall(Checker.java:152)
    at org.kohsuke.groovy.sandbox.impl.Checker.checkedCall(Checker.java:152)
    at org.kohsuke.groovy.sandbox.impl.Checker.checkedCall(Checker.java:152)
    at com.cloudbees.groovy.cps.sandbox.SandboxInvoker.methodCall(SandboxInvoker.java:17)
    at com.cloudbees.groovy.cps.impl.ContinuationGroup.methodCall(ContinuationGroup.java:90)
    at com.cloudbees.groovy.cps.impl.FunctionCallBlock$ContinuationImpl.dispatchOrArg(FunctionCallBlock.java:116)
    at com.cloudbees.groovy.cps.impl.FunctionCallBlock$ContinuationImpl.fixArg(FunctionCallBlock.java:85)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    at com.cloudbees.groovy.cps.impl.ContinuationPtr$ContinuationImpl.receive(ContinuationPtr.java:72)
    at com.cloudbees.groovy.cps.impl.ConstantBlock.eval(ConstantBlock.java:21)
    at com.cloudbees.groovy.cps.Next.step(Next.java:83)
    at com.cloudbees.groovy.cps.Continuable$1.call(Continuable.java:152)
    at com.cloudbees.groovy.cps.Continuable$1.call(Continuable.java:146)
    at org.codehaus.groovy.runtime.GroovyCategorySupport$ThreadCategoryInfo.use(GroovyCategorySupport.java:136)
    at org.codehaus.groovy.runtime.GroovyCategorySupport.use(GroovyCategorySupport.java:275)
    at com.cloudbees.groovy.cps.Continuable.run0(Continuable.java:146)
    at org.jenkinsci.plugins.workflow.cps.SandboxContinuable.access$001(SandboxContinuable.java:18)
    at org.jenkinsci.plugins.workflow.cps.SandboxContinuable.run0(SandboxContinuable.java:51)
    at org.jenkinsci.plugins.workflow.cps.CpsThread.runNextChunk(CpsThread.java:187)
    at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup.run(CpsThreadGroup.java:420)
    at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup$2.call(CpsThreadGroup.java:330)
    at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup$2.call(CpsThreadGroup.java:294)
    at org.jenkinsci.plugins.workflow.cps.CpsVmExecutorService$2.call(CpsVmExecutorService.java:67)
    at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
    at hudson.remoting.SingleLaneExecutorService$1.run(SingleLaneExecutorService.java:139)
    at jenkins.util.ContextResettingExecutorService$1.run(ContextResettingExecutorService.java:30)
    at jenkins.security.ImpersonatingExecutorService$1.run(ImpersonatingExecutorService.java:70)
    at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
    at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
    at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
    at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
    at java.base/java.lang.Thread.run(Thread.java:829)
Caused by: io.fabric8.kubernetes.client.http.WebSocketHandshakeException
    at io.fabric8.kubernetes.client.okhttp.OkHttpWebSocketImpl$1.onFailure(OkHttpWebSocketImpl.java:83)
    at okhttp3.internal.ws.RealWebSocket.failWebSocket(RealWebSocket.java:571)
    at okhttp3.internal.ws.RealWebSocket$2.onResponse(RealWebSocket.java:198)
    at okhttp3.RealCall$AsyncCall.execute(RealCall.java:203)
    at okhttp3.internal.NamedRunnable.run(NamedRunnable.java:32)
    ... 3 more
    Suppressed: java.lang.Throwable: waiting here
        at io.fabric8.kubernetes.client.utils.Utils.waitUntilReady(Utils.java:173)
        at io.fabric8.kubernetes.client.utils.Utils.waitUntilReadyOrFail(Utils.java:184)
        at io.fabric8.kubernetes.client.dsl.internal.core.v1.PodOperationsImpl.setupConnectionToPod(PodOperationsImpl.java:356)
        at io.fabric8.kubernetes.client.dsl.internal.core.v1.PodOperationsImpl.exec(PodOperationsImpl.java:283)
        at org.csanchez.jenkins.plugins.kubernetes.pipeline.ContainerExecDecorator$1.doLaunch(ContainerExecDecorator.java:448)
        at org.csanchez.jenkins.plugins.kubernetes.pipeline.ContainerExecDecorator$1.launch(ContainerExecDecorator.java:335)
        at hudson.Launcher$ProcStarter.start(Launcher.java:509)
        at org.jenkinsci.plugins.durabletask.BourneShellScript.launchWithCookie(BourneShellScript.java:176)
        at org.jenkinsci.plugins.durabletask.FileMonitoringTask.launch(FileMonitoringTask.java:132)
        at org.jenkinsci.plugins.workflow.steps.durable_task.DurableTaskStep$Execution.start(DurableTaskStep.java:326)
        at org.jenkinsci.plugins.workflow.cps.DSL.invokeStep(DSL.java:322)
        at org.jenkinsci.plugins.workflow.cps.DSL.invokeMethod(DSL.java:196)
        at org.jenkinsci.plugins.workflow.cps.CpsScript.invokeMethod(CpsScript.java:124)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:566)
        at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:98)
        at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325)
        at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1225)
        at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1034)
        at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.call(PogoMetaClassSite.java:41)
        at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:47)
        at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:116)
        at org.kohsuke.groovy.sandbox.impl.Checker$1.call(Checker.java:180)
        at org.kohsuke.groovy.sandbox.GroovyInterceptor.onMethodCall(GroovyInterceptor.java:23)
        at org.jenkinsci.plugins.scriptsecurity.sandbox.groovy.SandboxInterceptor.onMethodCall(SandboxInterceptor.java:163)
        at org.kohsuke.groovy.sandbox.impl.Checker$1.call(Checker.java:178)
        at org.kohsuke.groovy.sandbox.impl.Checker.checkedCall(Checker.java:182)
        at org.kohsuke.groovy.sandbox.impl.Checker.checkedCall(Checker.java:152)
        at org.kohsuke.groovy.sandbox.impl.Checker.checkedCall(Checker.java:152)
        at org.kohsuke.groovy.sandbox.impl.Checker.checkedCall(Checker.java:152)
        at org.kohsuke.groovy.sandbox.impl.Checker.checkedCall(Checker.java:152)
        at org.kohsuke.groovy.sandbox.impl.Checker.checkedCall(Checker.java:152)
        at com.cloudbees.groovy.cps.sandbox.SandboxInvoker.methodCall(SandboxInvoker.java:17)
        at com.cloudbees.groovy.cps.impl.ContinuationGroup.methodCall(ContinuationGroup.java:90)
        at com.cloudbees.groovy.cps.impl.FunctionCallBlock$ContinuationImpl.dispatchOrArg(FunctionCallBlock.java:116)
        at com.cloudbees.groovy.cps.impl.FunctionCallBlock$ContinuationImpl.fixArg(FunctionCallBlock.java:85)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:566)
        at com.cloudbees.groovy.cps.impl.ContinuationPtr$ContinuationImpl.receive(ContinuationPtr.java:72)
        at com.cloudbees.groovy.cps.impl.ConstantBlock.eval(ConstantBlock.java:21)
        at com.cloudbees.groovy.cps.Next.step(Next.java:83)
        at com.cloudbees.groovy.cps.Continuable$1.call(Continuable.java:152)
        at com.cloudbees.groovy.cps.Continuable$1.call(Continuable.java:146)
        at org.codehaus.groovy.runtime.GroovyCategorySupport$ThreadCategoryInfo.use(GroovyCategorySupport.java:136)
        at org.codehaus.groovy.runtime.GroovyCategorySupport.use(GroovyCategorySupport.java:275)
        at com.cloudbees.groovy.cps.Continuable.run0(Continuable.java:146)
        at org.jenkinsci.plugins.workflow.cps.SandboxContinuable.access$001(SandboxContinuable.java:18)
        at org.jenkinsci.plugins.workflow.cps.SandboxContinuable.run0(SandboxContinuable.java:51)
        at org.jenkinsci.plugins.workflow.cps.CpsThread.runNextChunk(CpsThread.java:187)
        at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup.run(CpsThreadGroup.java:420)
        at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup$2.call(CpsThreadGroup.java:330)
        at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup$2.call(CpsThreadGroup.java:294)
        at org.jenkinsci.plugins.workflow.cps.CpsVmExecutorService$2.call(CpsVmExecutorService.java:67)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at hudson.remoting.SingleLaneExecutorService$1.run(SingleLaneExecutorService.java:139)
        at jenkins.util.ContextResettingExecutorService$1.run(ContextResettingExecutorService.java:30)
        at jenkins.security.ImpersonatingExecutorService$1.run(ImpersonatingExecutorService.java:70)
        at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        ... 3 more
Caused by: java.net.ProtocolException: Expected HTTP 101 response but was '403 Forbidden'
    at okhttp3.internal.ws.RealWebSocket.checkResponse(RealWebSocket.java:229)
    at okhttp3.internal.ws.RealWebSocket$2.onResponse(RealWebSocket.java:196)
    ... 5 more