I use this command
./ipv6-proxy-server.sh -s 64 -c 1 --start-port 10001 -u test -p 1234 -t http --rotate-every-request
The message "ERROR: Bad port" appears and the proxy can be used normally, but there is no rotation ipv6 for every request.
OS : Ubuntu 24.04.3 LTS (GNU/Linux 6.8.0-1031-raspi aarch64)