I purchased it yesterday, but there was no transaction, which contradicts the author's signal.

Are there any file settings required?

I have been using this Expert Advisor since beginning, and unfortunately, I cannot say that I am satisfied with its performance. 

While the price is relatively low, the results so far have been quite disappointing. At the moment, it simply does not generate meaningful returns, and the overall performance is far below expectations.

I will continue to monitor it for a while longer, but based on my experience so far, I cannot recommend it.