Got an alert on my adsense account which says

You have rejected ad requests, which will result in lost revenue. The following ad units have made ad requests with incorrect site information. This occurs when the URL of the server from which the ad unit has been served differs from the URL of the actual page where the ad will be displayed. Learn how to fix these errors.

So the solution is that I'll have to use "google_page_url = "http://myurl.com/fullpath";"

I'm using wordpress, what should be the URL for google_page_url? For example my website is www.technostall.com. Should I put www.technostall.com there or should I give the path of each post? That is not good because I'm using a sidebar widget for sidebar ad unit. I can't change google_page_url for each page. What should I do?

This error is appearing only on my sidebar/navigation ad units.

Is using google_page_url = document.location; fine?