[Freeswitch-users] Error! Failed to log to database using nibblebill

hi i am using a nibblebill the call cost but have some problem in it. my nibblebill.conf.xml file is as http://pastebin.freeswitch.org/20650 and console log is http://pastebin.freeswitch.org/20651 i got Error *Failed to log to database! *Doing update query reply me about the issue Regards Shahzad Bhatti