Error: Plugin init for plugin 'geoip' failed with return code: Error opening geoip.dat at (eval 10) line 5096, <DATA> line 310. (A module required by plugin might be missing).

Setup ('D:\websites\cgi-bin/awstats.www.grecian.net.conf' file, web server or permissions) may be wrong.
Check config file, permissions and AWStats documentation (in 'docs' directory).