Error: Plugin load for plugin 'hostinfo' failed with return code: Error: Can't locate Net/XWhois.pm in @INC (@INC contains: C:/xampp/perl/site/lib C:/xampp/perl/vendor/lib C:/xampp/perl/lib . C:/Inetpub/ulrikweb/hende.ny/cgi-bin/awstats/lib C:/Inetpub/ulrikweb/hende.ny/cgi-bin/awstats/plugins C:/Inetpub/ulrikweb/hende.ny/cgi-bin/awstats/plugins) at (eval 5) line 1.

Setup ('C:/Inetpub/ulrikweb/hende.ny/cgi-bin/awstats/awstats.conf' file, web server or permissions) may be wrong.
Check config file, permissions and AWStats documentation (in 'docs' directory).