LexisNexis Digital Library - Message Handler Exception

Hoping removal of the <Signature> section will fix the following exception -

2020-10-30 19:28:53,611 - WARN [org.opensaml.saml.common.binding.security.impl.BaseSAMLSimpleSignatureSecurityHandler:277] - 10.146.64.180 - Message Handler:  Simple signature validation (with no request-derived credentials) failed
2020-10-30 19:28:53,611 - WARN [org.opensaml.saml.common.binding.security.impl.BaseSAMLSimpleSignatureSecurityHandler:277] - Message Handler:  Simple signature validation (with no request-derived credentials) failed
2020-10-30 19:28:53,611 - WARN [org.opensaml.saml.common.binding.security.impl.BaseSAMLSimpleSignatureSecurityHandler:214] - 10.146.64.180 - Message Handler:  Validation of request simple signature failed for context issuer: https://auth.overdrive.com/v2/external/saml/trust
2020-10-30 19:28:53,611 - WARN [org.opensaml.saml.common.binding.security.impl.BaseSAMLSimpleSignatureSecurityHandler:214] - Message Handler:  Validation of request simple signature failed for context issuer: https://auth.overdrive.com/v2/external/saml/trust
2020-10-30 19:28:53,617 - WARN [net.shibboleth.idp.profile.impl.WebFlowMessageHandlerAdaptor:202] - 10.146.64.180 - Profile Action WebFlowMessageHandlerAdaptor: Exception handling message
org.opensaml.messaging.handler.MessageHandlerException: Validation of request simple signature failed for context issuer
	at org.opensaml.saml.common.binding.security.impl.BaseSAMLSimpleSignatureSecurityHandler.doEvaluate(BaseSAMLSimpleSignatureSecurityHandler.java:216)
2020-10-30 19:28:53,617 - WARN [net.shibboleth.idp.profile.impl.WebFlowMessageHandlerAdaptor:202] - Profile Action WebFlowMessageHandlerAdaptor: Exception handling message
org.opensaml.messaging.handler.MessageHandlerException: Validation of request simple signature failed for context issuer
	at org.opensaml.saml.common.binding.security.impl.BaseSAMLSimpleSignatureSecurityHandler.doEvaluate(BaseSAMLSimpleSignatureSecurityHandler.java:216)
2020-10-30 19:28:53,678 - WARN [org.opensaml.profile.action.impl.LogEvent:105] - 10.146.64.180 - A non-proceed event occurred while processing the request: MessageAuthenticationError