Error Line 159: cvc-complex-type.2.4.a: Invalid content was found starting with element '{"http://www.omg.org/spec/BPMN/20100524/MODEL":extensionElements}'. One of '{"http://www.omg.org/spec/BPMN/20100524/MODEL":auditing, "http://www.omg.org/spec/BPMN/20100524/MODEL":monitoring, "http://www.omg.org/spec/BPMN/20100524/MODEL":categoryValueRef, "http://www.omg.org/spec/BPMN/20100524/MODEL":dataState}' is expected.