[Plugin: XML Google Maps] Warning and Fatal Error on Display

Trying to display a map but I encounter the following errors on the page where the map should appear:

Warning: require_once(../../../wp-config.php) [function.require-once]: failed to open stream: No such file or directory in /home/mysite/public_html/wp-content/plugins/xml-google-maps/xmlgooglemaps_show.php on line 6

Fatal error: require_once() [function.require]: Failed opening required ‘../../../wp-config.php’ (include_path=’.:/usr/lib/php:/usr/local/lib/php’) in /home/mysite/public_html/wp-content/plugins/xml-google-maps/xmlgooglemaps_show.php on line 6