When I press # Asterisk attempts to park

when I am in the auto attendant on freeconference.com and i press the user ID and pound asterisk attempts to transfer the call somewhere. here is the message I receive-

-- Playing 'pbx-transfer' (language 'en')
-- Unable to find extension '' in context 'office'
-- Playing 'pbx-invalid' (language 'en')

edit features.conf and comment out the transfer lines if you dont use them…