xbar: New user - can't get past first base [HELP]

I tried BitBar for the first time with a couple of simple Bitcoin price plugins, and I can’t get any of them to appear in my menu bar; only an ellipsis icon (“…”). I made sure that my plugins folder was declared, no subfolders within, and made sure that my plugins had their execute flag set for my Owner home account, Group staff, and Everyone.

Maybe the clue to my problem is, when I did BitBar’s Run in Terminal, I got:

#: bad interpreter: No such file or directorys/Bitstamp_last_price.1m.sh: /bin/bash

What are some common problems that would cause this? Mac OS X 10.6.8