Awstats not show keywords or shearch engines

[nando.dominios]

Hello, i´m use plesk 10.1 in a ubuntu 10 lts server, my awstats work but in the keywords or shearch engines sections not show any result (in all domains).

 

[nando.dominios]

This is Plesk!

 

[swemp]

Same here on to machines.

 

[Knarf]

I have the same problem since installing a fresh Plesk 10.1.1.

I found the following solution:
http://forum.parallels.com/showpost.php?p=443809&postcount=7