Path '/{slug}.html' not found

Typecho_Router_Exception: Path '/{slug}.html' not found in /www/wwwroot/typechodev/typechodev.com/home/var/Typecho/Router.php:155
Stack trace:
#0 /www/wwwroot/typechodev/typechodev.com/home/index.php(25): Typecho_Router::dispatch()
#1 {main}