200 PORT command successful. Consider using PASV. 550 Failed to open file

not understood why this error came

check if download.txt file is in your server folder or not i.e. workspace/ftp_server

Hey, when I ran it previously it did fine. But now I am getting it wrong after the assessment failed and I did it from start. And also the log file is empty.

check my answer for this query
https://forum.crio.do/t/module-4-file-transfer/6264/10?u=senti143