sup-mail ruby problem

adam@Candide:~$ sup-mail
/usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require': iconv will be deprecated in the future, use String#encode instead.
[2013-04-01 08:14:27 +1300] ERROR: oh crap, an exception
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I'm very sorry. It seems that an error occurred in Sup. Please
accept my sincere apologies. Please submit the contents of
/home/adam/.sup/exception-log.txt and a brief report of the
circumstances to http://masanjin.net/sup-bugs/ so that I might
address this problem. Thank you!

Sincerely,
William
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--- TypeError from thread: main
can't convert String into Array
/usr/lib/ruby/vendor_ruby/sup/account.rb:64:in `add_account'
/usr/lib/ruby/vendor_ruby/sup/account.rb:38:in `initialize'
/usr/lib/ruby/vendor_ruby/sup/util.rb:576:in `new'
/usr/lib/ruby/vendor_ruby/sup/util.rb:576:in `init'
/usr/lib/ruby/vendor_ruby/sup.rb:166:in `start'
/usr/bin/sup-mail:164:in `<module:Redwood>'
/usr/bin/sup-mail:80:in `<main>'