iptables not found and permission denied, plz help

[aaronllowe]

gateway: coffeeMiner.py
victims:
['172.16.2.244', '172.16.2.249', '172.16.2.250']
sh: 1: cannot create /proc/sys/net/ipv4/ip_forward: Permission denied
sh: 1: iptables: not found
sh: 1: iptables: not found
sh: 1: iptables: not found
############################################################################
# mitmproxy requires Python 3.6 or higher!                                 #
#                                                                          #
# Please upgrade your Python intepreter or use our mitmproxy binaries from #
# https://mitmproxy.org. If your operating system does not include the     #
# required Python version, you can try using pyenv or similar tools.       #
############################################################################

[MisterBianco]

You don't have permission to run the script, and you are using the wrong version of Python. Look mate the messages tell you exactly what's wrong. You shouldnt be using this if you can't read a traceback...