http://portal.wko.at/wk/dok_detail_file.wk?angid=1&docid=221374&conid=642034&stid=454334
Error in processings for transformation lib.dok_detail_file.2.trf; handler: Response
Unexpected error in Backend transformation: Object reference not set to an instance of an object.
Input Data:
<?xml version="1.0" encoding="utf-8"?>
<dbf_document>
  <dbf_metadata>
    <dbf_keydata>
      <key1 name="dok_...