I want to convert Json file to csv file using Pyhton

I have problem when i convert json file to csv i convert my csv file to json and it work but when i convert json file to csv file it don't work!

HERE MY PYTHON CODE

   with open('orders.json') as json_file:
    data = json.load(json_file)
 
    order_data = data['orders']

    # now we will open a file for writing
    data_file = open('data_file.csv', 'w')

    # create the csv writer object
    csv_writer = csv.writer(data_file)

    # Counter variable used for writing
    # headers to the CSV file
    count = 0

    for ord in order_data:
        if count == 0:

            # Writing headers of CSV file
            header = ord.keys()
            csv_writer.writerow(header)
            count += 1

        # Writing data of CSV file
        csv_writer.writerow(ord.values())

    data_file.close()

and the output is like this

there null row on the csv file how to handle this problem?

and here the json file

Copyright Notice：Content Author:「gemma」，Reproduced under the CC 4.0 BY-SA copyright license with a link to the original source and this disclaimer.
Link to original article：https://stackoverflow.com/questions/71938580/i-want-to-convert-json-file-to-csv-file-using-pyhton