http://ciisqbg45nggykdl6rjdrq3wc64csga4vkphu66qsi65mypeitqedoad.onion/blog/multitun
It defaults to the Tor server at 127.0.0.1 port 9050, but since you're using Tor Browser, that needs to be changed to port 9150. So edit /etc/tor/torsocks.conf (or wherever torsocks.conf is) and change the TorPort 9050 line to TorPort 9150 If it's commented out, i.e. there's a # in front of it, remove that first.