Your task was stopped

The task you wanted to perform with net2ftp took more time than the allowed 30 seconds, and therefor that task was stopped.
This time limit guarantees the fair use of the web server for everyone.

Try to split your task in smaller tasks: restrict your selection of files, and omit the biggest files.

If you really need net2ftp to be able to handle big tasks which take a long time, consider installing net2ftp on your own server.