Caused by: java.lang.IllegalArgumentException: Value <Traveller [firstName=John, lastName=Doe, email=jon.doe@example.com, nationality=American, address=Address [street=main street, city=Boston, zipCode=10005, country=US]]> is not valid for datatype: org.jbpm.process.core.datatype.impl.type.UndefinedDataType@2097dc4e
	at org.jbpm.process.core.context.variable.Variable.setValue(Variable.java:132)
	at org.kie.kogito.serialization.process.impl.ProtobufProcessInstanceReader.buildVariables(ProtobufProcessInstanceReader.java:531)
	at org.kie.kogito.serialization.process.impl.ProtobufProcessInstanceReader.buildWorkItemNodeInstance(ProtobufProcessInstanceReader.java:450)
	at org.kie.kogito.serialization.process.impl.ProtobufProcessInstanceReader.buildNodeInstance(ProtobufProcessInstanceReader.java:252)
	at org.kie.kogito.serialization.process.impl.ProtobufProcessInstanceReader.buildWorkflow(ProtobufProcessInstanceReader.java:179)
	at org.kie.kogito.serialization.process.impl.ProtobufProcessInstanceReader.read(ProtobufProcessInstanceReader.java:131)
	at org.kie.kogito.serialization.process.impl.ProtobufProcessInstanceMarshaller.readProcessInstance(ProtobufProcessInstanceMarshaller.java:48)