The Validator is pointing to the beginning of the ncc.html file. Check through the list of meta data elements to see if the meta name 'dc:publisher' is present (it may not have been entered when the project was created).
<meta name="dc:creator" content="RNIB Talking Book Service" />
<meta name="dc:date" content="2004-02-09" scheme="yyyy-mm-dd" />
<meta name="dc:format" content="DAISY 2.02" />
<meta name="dc:identifier" content="UK-RNIB-1667C0B5-360A-4BF3" />
<meta name="dc:language" content="en-GB" scheme="ISO 639" />
<meta name="ncc:charset" content="windows-1252" />
...
<meta name="ncc:kByteSize" content="14459" />
<meta http-equiv="Content-type" content="text/html; charset=windows-1252" />