Webalizer stopped working

dear Masters,
In cpanel I have been observing the statistics of my websites. however it stopped working on april 10th with no reason. I read thru and made it disabled as default but enabled it just for one website, i even tried to make it work every 48 hours to reduce its job. Still no luck.
Any idea why would Webalizer stop generating new data ?
thank you

 

Deeper problem now.

Thank you for the reply.
Well, my hosting company godaddy told me that my log files reached 2gb so that my statistic software doesn't generate new one anymore. I thought if I delete all the log files, server will create new ones and the size will be zero again. however if I run the webalizer now, I get "Cannot find an acceptable log file for your domain. " error. I pretty much deleted every file appeared under /usr/local/apache/domlogs/ .
Now how can I put those file back in, I don't even remember what was in it ?
any help appreciated.
Thank you