acts_as_state_machine error: evaluating nil.exited

NoMethodError in FeedsController#do_validate

You have a nil object when you didn't expect it!
The error occurred while evaluating nil.exited

RAILS_ROOT: /Users/jaysanders/Sites/rss/trunk
Application Trace | Framework Trace | Full Trace

vendor/plugins/acts_as_state_machine/lib/acts_as_state_machine.rb:
64:in `perform'
vendor/plugins/acts_as_state_machine/lib/acts_as_state_machine.rb:
94:in `fire'
vendor/plugins/acts_as_state_machine/lib/acts_as_state_machine.rb:
93:in `each'
vendor/plugins/acts_as_state_machine/lib/acts_as_state_machine.rb:
93:in `fire'
vendor/plugins/acts_as_state_machine/lib/acts_as_state_machine.rb:
201:in `validated!'
app/controllers/feeds_controller.rb:103:in `do_validate'

Oh yeah, this is line 64: old_state.exited(record) unless
loopback