Unable to convert xpath value to date

[saritha N <saritha.0917@xxxxxxxxx>]

Hi,

I am getting an error while retrieving the values from xml and converting into date format 

when I execute this query

select history from KM_REL_FF_USR_DATA where    USERID  in   (53008) and SHARE_WORKING_GROUP =15683

output is

"<HISTORY TYPE="DATAENTRYTYPE" ><USERSUBMITEDDATA ID="1" ><DATAENTRYFIELDDATA ID="1" TYPE="DATAENTRYTYPE" ><DATA ID="1" CREATED-DATE="09-09-2013" CREATED-TIME="12:00:00 am(am)" MODIFIED-DATE="09-09-2013" MODIFIED-TIME="12:00:00 am(am)" > Enter what you want to achieve from this programme&#058;

 </DATA></DATAENTRYFIELDDATA></USERSUBMITEDDATA></HISTORY>"

from this I need to extract modified date and convert to date.I am using this below query.But while executing this query I am getting error

select to_date(xpath('//DATA/@MODIFIED-DATE',(select history from KM_REL_FF_USR_DATA where    USERID  in   (53008) and SHARE_WORKING_GROUP =15683))::text,'dd/mm/yyyy')

 ERROR:  invalid value "{0" for "dd"

 DETAIL:  Value must be an integer.

Please help me out to solve this issue.

Thanks & Regards,

Saritha