Is there a place for asking/seeking paid answer to trivial ellliotic curve related algorithms problems?

I have a problem understanding an algorithm but to the point it s impossible to find help online https://mathoverflow.net/q/497959 and on other forums I met peoples who the have problem applying the algorithm all.

So as a result of no longer being able to talk to the algorithm author, **it appears the answer won t come for free. In such case is there a place where it s possible to pay for solving that kind of elliptic curve problems**?