Installed Gsearch on my hosting service on a site using a default template (beez20) and configured GSearch module to display the Gsearch search box. The search box appears in the specified position.

When I type a term into the search box and click the search button or press the enter key on the keyboard, I get the following error:

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An error has occurred.
The requested page cannot be found.
Search

You may wish to search the site or visit the home page.
Search...

Home Page
If difficulties persist, please contact the System Administrator of this site and report the error below.
#404 Component not found
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The URL that the site is trying to access is: /index.php?Itemid=225 which isn't a valid itemid on the site as far as I can tell since no article has that id. All article IDs are under 102.

Joomla 1.7.0

 

Also, if you are using a module for Gsearch, it has to be linked to a menu entry for Gsearch. Make sure that the menu entry it is linked to is still active. You may need to recreate the link.