Error on clicking link to a non-existing wiki page

warning: Invalid argument supplied for foreach() in C:\wamp\www\domain\includes\common.inc on line 874.
warning: strtr() [function.strtr]: The second argument is not an array in C:\wamp\www\domain\includes\common.inc on line 891.
<em>The page Cars does not exist.
You can search for Cars </em>

The error and message was shown on clicking link to a non-existing wiki page. Node search was enabled.