[Hack for problem which QA home(Question and Answer) is redirected to dashboard ]
1. Comment out qa-include/qa-page-default.php(L97-98)
// if ($explicitqa && (!qa_is_http_post()) && !qa_has_custom_home())
// qa_redirect(qa_category_path_request($categories, $categoryid), $_GET);
2. Add link at admin->pages
Title => "Q&A", URL of link => "qa"