idp-process.log with error

2022-10-14 14:23:16,857 - 172.18.2.216 - INFO [net.shibboleth.idp.authn.impl.ValidateExternalAuthentication:180] - Profile Action ValidateExternalAuthentication: External authentication succeeded for Subject
2022-10-14 14:23:28,749 - 172.18.2.216 - INFO [net.shibboleth.idp.authn.duo.impl.ValidateDuoWebResponse:200] - Profile Action ValidateDuoWebResponse: Duo authentication succeeded for 'theUser'
2022-10-14 14:23:29,832 - 172.18.2.216 - INFO [net.shibboleth.idp.attribute:12] - Query Response = {"memberOf":["cn=iweb,ou=Groups,o=University of Virginia,c=US","..."]}
2022-10-14 14:23:29,848 - 172.18.2.216 - ERROR [org.opensaml.saml.saml2.binding.encoding.impl.HTTPPostEncoder:177] - Error invoking Velocity template: null
2022-10-14 14:23:29,849 - 172.18.2.216 - ERROR [org.opensaml.profile.action.impl.EncodeMessage:160] - Profile Action EncodeMessage: Unable to encode outbound response
org.opensaml.messaging.encoder.MessageEncodingException: Error creating output document
	at org.opensaml.saml.saml2.binding.encoding.impl.HTTPPostEncoder.postEncode(HTTPPostEncoder.java:178)
Caused by: org.eclipse.jetty.io.EofException: null
	at org.eclipse.jetty.io.ChannelEndPoint.flush(ChannelEndPoint.java:279)
Caused by: java.io.IOException: Connection reset by peer
	at java.base/sun.nio.ch.FileDispatcherImpl.writev0(Native Method)
2022-10-14 14:23:29,850 - 172.18.2.216 - ERROR [java.lang.RuntimeException:91] -
java.lang.RuntimeException: java.lang.IllegalStateException: Exception occurred rendering view net.shibboleth.ext.spring.velocity.VelocityView: name 'error'; URL [error.vm]
	at net.shibboleth.idp.profile.impl.RethrowingFlowExecutionExceptionHandler.handle(RethrowingFlowExecutionExceptionHandler.java:40)
Caused by: java.lang.IllegalStateException: Exception occurred rendering view net.shibboleth.ext.spring.velocity.VelocityView: name 'error'; URL [error.vm]
	at org.springframework.webflow.mvc.view.AbstractMvcView.render(AbstractMvcView.java:208)
Caused by: java.lang.IllegalStateException: STREAM
	at org.eclipse.jetty.server.Response.getWriter(Response.java:800)
2022-10-14 14:23:41,907 - 172.18.2.216 - ERROR [java.lang.RuntimeException:91] -
java.lang.RuntimeException: java.lang.IllegalStateException: You can only resume paused view states, and state [EndState@39535c9b id = 'ErrorView', flow = 'SAML2/Redirect/SSO', entryActionList = list[[AnnotatedAction@4806b626 targetAction = [EvaluateAction@726f85c9 expression = environment, resultExpression = requestScope.environment], attributes = map[[empty]]], [AnnotatedAction@42886a17 targetAction = [EvaluateAction@619c5159 expression = opensamlProfileRequestContext, resultExpression = requestScope.profileRequestContext], attributes = map[[empty]]], [AnnotatedAction@1cd67cca targetAction = [EvaluateAction@1299f354 expression = T(net.shibboleth.utilities.java.support.codec.HTMLEncoder), resultExpression = requestScope.encoder], attributes = map[[empty]]], [AnnotatedAction@1340fbc2 targetAction = [EvaluateAction@1055766a expression = flowRequestContext.getExternalContext().getNativeRequest(), resultExpression = requestScope.request], attributes = map[[empty]]], [AnnotatedAction@3fca6886 targetAction = [EvaluateAction@62142f78 expression = flowRequestContext.getExternalContext().getNativeResponse(), resultExpression = requestScope.response], attributes = map[[empty]]], [AnnotatedAction@769e5613 targetAction = [EvaluateAction@4dc3988c expression = flowRequestContext.getActiveFlow().getApplicationContext().containsBean('shibboleth.CustomViewContext') ? flowRequestContext.getActiveFlow().getApplicationContext().getBean('shibboleth.CustomViewContext') : null, resultExpression = requestScope.custom], attributes = map[[empty]]]], exceptionHandlerSet = list[net.shibboleth.idp.profile.impl.RethrowingFlowExecutionExceptionHandler@53e2d181], finalResponseAction = org.springframework.webflow.action.ViewFactoryActionAdapter@58011f46, outputMapper = [null]] is not a view state - programmer error
	at net.shibboleth.idp.profile.impl.RethrowingFlowExecutionExceptionHandler.handle(RethrowingFlowExecutionExceptionHandler.java:40)
Caused by: java.lang.IllegalStateException: You can only resume paused view states, and state [EndState@39535c9b id = 'ErrorView', flow = 'SAML2/Redirect/SSO', entryActionList = list[[AnnotatedAction@4806b626 targetAction = [EvaluateAction@726f85c9 expression = environment, resultExpression = requestScope.environment], attributes = map[[empty]]], [AnnotatedAction@42886a17 targetAction = [EvaluateAction@619c5159 expression = opensamlProfileRequestContext, resultExpression = requestScope.profileRequestContext], attributes = map[[empty]]], [AnnotatedAction@1cd67cca targetAction = [EvaluateAction@1299f354 expression = T(net.shibboleth.utilities.java.support.codec.HTMLEncoder), resultExpression = requestScope.encoder], attributes = map[[empty]]], [AnnotatedAction@1340fbc2 targetAction = [EvaluateAction@1055766a expression = flowRequestContext.getExternalContext().getNativeRequest(), resultExpression = requestScope.request], attributes = map[[empty]]], [AnnotatedAction@3fca6886 targetAction = [EvaluateAction@62142f78 expression = flowRequestContext.getExternalContext().getNativeResponse(), resultExpression = requestScope.response], attributes = map[[empty]]], [AnnotatedAction@769e5613 targetAction = [EvaluateAction@4dc3988c expression = flowRequestContext.getActiveFlow().getApplicationContext().containsBean('shibboleth.CustomViewContext') ? flowRequestContext.getActiveFlow().getApplicationContext().getBean('shibboleth.CustomViewContext') : null, resultExpression = requestScope.custom], attributes = map[[empty]]]], exceptionHandlerSet = list[net.shibboleth.idp.profile.impl.RethrowingFlowExecutionExceptionHandler@53e2d181], finalResponseAction = org.springframework.webflow.action.ViewFactoryActionAdapter@58011f46, outputMapper = [null]] is not a view state - programmer error
	at org.springframework.webflow.engine.Flow.getCurrentViewState(Flow.java:634)