Rclone copy gives error Connection reset by peer, using FTP

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2020/07/17 17:10:29 DEBUG : rclone: Version "v1.52.2-222-gbcd362fc-beta" starting with parameters ["rclone" "ls" "freebox:/" "-vv"]
2020/07/17 17:10:29 DEBUG : Using config file from "/home/AzureUser/.config/rclone/rclone.conf"
2020/07/17 17:10:29 DEBUG : ftp://FTP IP:40161: Connecting to FTP server
2020/07/17 17:10:29 DEBUG : 2 go routines active