pages with .html extension doesn't show.
if I change the extension to .php manually by typing in address bar the problem be solved.
I think the html files don't parse as php files!
my site address:
http://176.9.76.37/
thanks in advance

thanks the problem solved:
<Directory /var/www/>
Options Indexes FollowSymLinks
AllowOverride All
Require all granted
</Directory>