Your question is strange. There is no use of "having been done something" or "done something" in your sentence. Your sentence is fine without "having been".
Interested in Language
Can you explain please the difference between "having been done something" and "done something"? Here is the sentence: "The striking illustration of this is the results of all the elections (having been) conducted since our last convention, especially the elections of local self-governing bodies in different communities."
However, can I use "having been" here? Is there any difference. I have used "done something" as a general expression.
There is no reason to include 'having been' in your sentence.