Tested the web application for checking if the output is tallied with the generated file from the user, checked as well if there is no more error will be encountered, as per checking, an error is encountered, checked for the cause of the error and fix it, the cause is the connection in the MySQL, reposted this to infra, and after a while, it is now OK. Continued the testing, as per testing, the data generated is not equal to the given data from ms. Sarah. Modify the query to correct the discrepancy, and tested the changes again, the changes are tested but need more testing to make sure that the data is correct.