Invalid client error on node js parse

Good afternoon, I ran into an invalid client problem when trying to parse a document, all the paths are correct, I think the error lies in my access keys
BOOK_READER_CLIENT_ID is the Client Id that is listed in my application and BOOK_READER_CLIENT_SECRET is the Client Secret that is listed there
Here is the piece of code I am trying to run

async readBook(req, res, next) {
        try {
            const book = await BookModel.findById(req.params.id);

            if (!book) {
                return res.status(404).json({message: 'Книга не найдена'});
            }

            const config = new Configuration(
                process.env.BOOK_READER_CLIENT_ID,
                process.env.BOOK_READER_CLIENT_SECRET
            );
            const parseApi = new ParseApi(config);
            const fb2FilePath = path.join(__dirname, `../uploads/books/${book.fileName}`);

            const fileBytes = fs.readFileSync(fb2FilePath);

            const parseOptions = new ParseOptions();
            parseOptions.filePath = 'document.fb2';

            const response = await parseApi.parse(new ParseRequest(parseOptions, fileBytes));

            const parsedText = response.text;

            res.send(`
        <html>
          <head>
            <title>FB2 Parsing</title>
          </head>
          <body>
            <pre>${parsedText}</pre>
          </body>
        </html>
      `);
        } catch (e) {
            next(e)
        }
    }

And here is my answer when a try to send book id

{ message: 'invalid_client', code: 400 }

This topic has been moved to the related forum: https://forum.groupdocs.cloud/t/invalid-client-error-on-node-js-parse/3150