Ok, this time I logged before attempting to Setup the plugin, but the result it's the same.
However, I tried to delete the 'testing post' and this is what I got:
'Return value of test post delete:
Successfully deleted. Return value: {"error":{"type":"GraphMethodException","message":"Unsupported delete request."}}'
However, I tried to delete the 'testing post' and this is what I got:
'Return value of test post delete:
Successfully deleted. Return value: {"error":{"type":"GraphMethodException","message":"Unsupported delete request."}}'