I got following error message when i access to testlink through Google Chrome.
Fatal error: require_once() [function.require]: Failed opening required 'BreadCrumbStack.class.php' (include_path='.:/usr/share/php:/usr/share/pear:.:/var/www/testlink_1.8.3/lib/functions/') in /var/www/testlink_1.8.3/lib/functions/common.php on line 113