Richsnippets Google

Hello, thanks for this theme!

I have this error with richsnippets:

Error: Missing required field "updated".
Error: Missing required hCard "author".

I’m trying on content-single.php with this but it doesn’t works.
<time class="updated" datetime="<?php the_time('Y-m-d'); ?>"><?php the_time(get_option('date_format')); ?></time>

By the way: Is there a way to set the root page (posts) with sidebar?

Thank YOU!