Fix a steganography issue on java project (tomcat 9 server)

Hello! This one if for $20USD and due to today (it is aprox 1-3 max hours of work with someone with knowledge). I ATTACH the project along with the sql db here: [login to view URL] or else we could work on teamviewer to fix this. I suggest and would like to work on this way: "Open an SSL / TKS connection between the server and the client and everything (even the hashed password) leave securely through the connection." I also ATTACH: 1. the flow 2. our problem on the flow Kindly review and if interested i would be happy to work with you on this one!