Invalid AdWords gclid
My Google analytic account is showing Invalid AdWords gclid notification.
The detailed error message is The Ad Destination URL http://www.stellaroutlooktools.com/scan/windows-live-mail-to-pst.php from the AdWords account has accrued a significant number of clicks but a lower-than-expected number of corresponding sessions because the page is dropping or altering the gclid parameter inserted by Google. Check the web server's redirect logic or its use of a URL rewrite engine to ensure the gclid parameter is preserved.
Can anyone help me to know what this notification is about and how to resolve this issue?