checklink: 500

I get a 500-error for http://www.trygging.fo/ when checking http://validator.w3.org/checklink?uri=http%3A%2F%2Flandsbank.fo%2Findex.cfm%2F42.html%26lang%3Den&depth=&submit=Check

But the link looks OK in IE, and in telnet:

HEAD / HTTP/1.0
host:www.trygging.fo
 
HTTP/1.1 200 OK
Via: 1.1 NTPROXY01
Connection: close
Content-Length: 12643
Content-Type: text/html
Server: Microsoft-IIS/4.0
Content-Location: http://www.trygging.fo/internet/Default.htm
Date: Tue, 18 Sep 2001 12:35:32 GMT
Accept-Ranges: bytes
Last-Modified: Mon, 27 Aug 2001 10:37:04 GMT
ETag: "62d96736e42ec11:2d8b"

Received on Tuesday, 18 September 2001 20:30:06 UTC