FreeBSD web build failed on build-web.ysv.freebsd.org

[User Www-data]

Jul 22 23:44:02 build-web newsyslog[37449]: logfile turned over due to -F request
Build started Sat Jul 22 23:54:00 UTC 2017
Updating 'head':
At revision 50534.
Updating 'relnotes/doc':
At revision 321376.
Updating 'relnotes/man4':
At revision 321376.
Updating 'relnotes11/doc':
At revision 321376.
Updating 'relnotes11/man4':
At revision 321376.
Updating 'relnotes10/doc':
At revision 321376.
Updating 'relnotes10/man4':
At revision 321376.
Updating 'relnotes9/doc':
At revision 321376.
Updating 'relnotes9/man4':
At revision 321376.
Updating 'ports':
At revision 446433.
env XML_CATALOG_FILES="file:///usr/local/www/build/head/en_US.ISO8859-1/htdocs/catalog-cwd.xml  file:///usr/local/www/build/head/en_US.ISO8859-1/share/xml/catalog.xml  file:///usr/local/www/build/head/share/xml/catalog.xml  file:///usr/local/share/xml/catalog" /usr/local/bin/xmllint  --xinclude --valid --noout --nonet administration.xml
Entity: line 1: parser error : Entity 'a.mw' not defined
&a.mw; <email xmlns='http://docbook.org/ns/docbook'>mw at FreeBSD.org</email>
      ^
administration.xml:169: parser error : Entity 'a.marius.email' failed to parse
    <li>&a.marius.email; (Deputy Lead)</li>
                        ^
*** Error code 1

Stop.
make: stopped in /usr/local/www/build/head/en_US.ISO8859-1/htdocs
        0.06 real         0.04 user         0.03 sys