AWSTATS not posting results

[64bithost.com]

I get the darndest thing when I run awstats on all of my domains. AWSTATS is installed and PHP is installed but this is what I get.
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Not Found
The requested URL /plesk-stat/webstat was not found on this server.

Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.
Apache/1.3.37 Server at bestonacapulco.com Port 80
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Does anyone have any idea how to fix this?
-chris