Error

Unable to find document type.DEMOPIC exceptions.AttributeError FieldStorage instance has no attribute 'add_field'

Please contact admin@sudigital.org quoting the following information:

URI: http://lib.sudigital.org/submit?doctype=DEMOPIC
Time: 19/Jul/2019:06:22:24 +0300
Browser: CCBot/2.0 (https://commoncrawl.org/faq/)
Client: 18.209.104.7

Please send an error report to the Administrator.