I understood why the plugin could not correctly analyze the article and gave out errors. In my article, I talked about the color characteristics of the display (DeltaE). At the end of the sentence it was written:
(средняя DeltaE < 2, максимальная DeltaE < 4)
This is what caused the mistakes. I checked, if I write my article in English, then the plugin works correctly. If in Russian, then he can not make a correct analysis of the text, issuing the corresponding errors.
I hope you can solve this problem.