Hi, i'm not sure if thats the right forum to post this, anyway..

I am working on a new website and have the sitemap being built automatically every night by a system cron job. (curling the url)

The sitemap is being generated and all my urls follow the following format (i'm also using the internationalization plugin which i'm not sure if it's related to the issue)

domain.com/en/mypage/
domain.com/gr/mypage/
domain.com/ru/mypage/

generally it works as expected but
in some occasions one or two non-existant pages are listed in the sitemap. for example:

domain.com/index.php?cID=xxx

i've tried unsuccessfully to locate these pages. I have found out about this by google webmaster tools and later by examining the sitemap itself.

Any ideas?
Thanks