3193948 - PI Rest Adapter error HIERARCHY_REQUEST_ERR

You use the REST Adapter as Receiver and you're converting XML to JSON.
You can see that the JSON format is not what you are expecting, as described on:
Link Remove Header node in Receiver REST adapter

However after applying the solution provided on the SAP link, you are getting the following error:
MP: exception caught with cause org.w3c.dom.DOMException: HIERARCHY_REQUEST_ERR: An attempt was made to insert a node where it is not permitted.
You have found the SAP Note 2305614 - HIERARCHY_REQUEST_ERR error in Receiver REST Adapter to avoid this error, however you still having same error after applying the solution provided on the mentioned note. 

• SAP NetWeaver 7.4
• SAP NetWeaver 7.5

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