I checked the application to check the concern. As per checking, the application can't connect to the server for extraction of data, I discussed this with sir Jessie and the connection to the server will continue to be tested and checked tomorrow. At the same time, while there is no connection yet, checked the processed of the application for checking the possible reason why the file is not generated. As per checking, the application will create a text file with or without sales, so there must be a problem with the data it used/extracted for this error to encounter, discussed as well with sir Jessie that he only used the mall sending and not the coin. Checking will continue tomorrow.