Path '/ext/ayqp_client.apk' not found

Typecho_Router_Exception: Path '/ext/ayqp_client.apk' not found in /usr/local/nginx/html/typecho/var/Typecho/Router.php:155 Stack trace: #0 /usr/local/nginx/html/typecho/index.php(23): Typecho_Router::dispatch() #1 {main}