FreeBSD web build failed on www.freebsd.org

[World Wide Web Owner]

? relnotes4/doc/fr_FR.ISO8859-1/relnotes/i386/x18.html
===> security
===> commercial
===> docproj
===> news
===> news/1993
===> news/1996
===> news/1997
===> news/1998
===> news/1999
===> news/2000
===> news/2001
===> news/2002
===> news/status
===> advocacy
===> events
Generating curdate.xml
/usr/local/bin/xsltproc  -o events.html  /w/www/build/www/en/events/events.xsl /w/www/build/www/en/events/events.xml
/usr/local/bin/tidy -i -m -raw -preserve -f /dev/null -asxml  events.html
===> events/2002
===> events/2003
===> FAQ
===> handbook
===> tutorials
===> internal
/usr/bin/perl5 /w/www/build/www/en/internal/homepage.pl > homepage.inc
/usr/bin/sed -e 's/<!ENTITY date[ \t]*"$Free[B]SD. .* \(.* .*\) .* .* $">/<!ENTITY date	"Last modified: \1">/'  homepage.sgml |  /usr/bin/env SGML_CATALOG_FILES=  /usr/local/bin/sgmlnorm -d -ifreebsd.urls.absolute -c /usr/local/share/sgml/html/catalog -D /w/www/build/www/en/internal > homepage.html ||  (/bin/rm -f homepage.html && false)
/usr/local/bin/tidy -i -m -raw -preserve -f /dev/null -asxml  homepage.html
*** Error code 1 (ignored)
===> java
===> java/dists
===> java/docs
===> java/links
===> copyright
===> search
===> projects
===> projects/busdma
===> projects/c99
/usr/bin/sed -e 's/<!ENTITY date[ \t]*"$Free[B]SD. .* \(.* .*\) .* .* $">/<!ENTITY date	"Last modified: \1">/'  index.sgml |  /usr/bin/env SGML_CATALOG_FILES=  /usr/local/bin/sgmlnorm -d -ifreebsd.urls.absolute -c /usr/local/share/sgml/html/catalog -D /w/www/build/www/en/projects/c99 > index.html ||  (/bin/rm -f index.html && false)
/usr/local/bin/sgmlnorm:<OSFD>0:1045:14:E: general entity "a.stefanf" not defined and no default entity
*** Error code 1

Stop in /w/www/build/www/en/projects/c99.
*** Error code 1

Stop in /w/www/build/www/en/projects.
*** Error code 1

Stop in /w/www/build/www/en.
        4.58 real         1.38 user         1.28 sys