This was reported on launchpad:
In the files /usr/share/awstats/plugins/geoip_city_maxmind.pm and geoip_region_maxmind.pm there is an unescaped ampersand: 'AE',"Armed Forces Europe, Middle East, & Canada"
When outputting an Awstats report via /awstats.pl?output=plugin_geoip_city_maxmind in XHTML this creates a syntax error and the page cannot be displayed. Please change the & to &