Google snippets errors - theloopphp code

I have edit theloop.php file adding entry-title,updated and author values and still got 2 errors on google webmaster tools:
Error: Missing required field "updated".
Error: Missing required hCard "author"

Theme "Gameplay".My current theloop.php code:

<?php
global $post, $query_string, $SMTheme;





if (have_posts()) :




if (!isset($_GET['ajaxpage'])) {?> <div class='articles'> <?php }




while (have_posts()) : the_post(); ?>
<div class='one-post'>
<div id="post-<?php the_ID(); ?>" <?php post_class("post-caption"); ?>>
<?php //Title
if (!is_single()&&!is_page()) { ?>
<h2 class='entry-title'><a href="<?php the_permalink(); ?>" title="<?php printf( $SMTheme->_( 'permalink' ), the_title_attribute( 'echo=0' ) ); ?>" class="post_ttl entry-title"><?php the_title(); ?></a></h2>
<?php } else { ?>
<h1 class='entry-title'><?php the_title(); ?></h1>
<?php }


//Post meta (comments, date, categories)
if (!is_page()) {?><p class='post-meta'>

<span class="post-date date updated"><?php echo get_the_date(); ?></span>,

<?php echo $SMTheme->_('before-category'); ?><?php the_category(', ');

if(comments_open( get_the_ID() )) {
?> | <span class='post-comments'><?php comments_popup_link( $SMTheme->_( 'noresponses' ), $SMTheme->_( 'oneresponse' ), $SMTheme->_( 'multiresponse' ) ); ?></span>
<?php }
edit_post_link( $SMTheme->_( 'edit' ), ' | <span class="edit-link">', '</span>' );
?>
<span class="vcard author"><span class="fn"><?php the_author(); ?></span></span>
</p><?php } ?>

</div>
<div class='post-body'>

<?php // Post featured image
if(has_post_thumbnail()) {
if (!is_single()){ ?><a href="<?php the_permalink(); ?>" title="<?php printf( $SMTheme->_( 'permalink' ), the_title_attribute( 'echo=0' ) ); ?>"> <?php }
the_post_thumbnail(
'post-thumbnail',
array("class" => $SMTheme->get( 'layout','imgpos' ) . " featured_image")
);
if (!is_single()){ ?></a><?php }
}

?>







<?php
//Post content
if (!is_single()&&!is_page()) {
smtheme_excerpt('echo=1');
?><a href='<?php the_permalink(); ?>' class='readmore'><?php echo $SMTheme->_( 'readmore' ); ?></a><?php
} else {
the_content('');
}
wp_link_pages(); ?>
<div class='border'></div>
</div>
</div>




<?php endwhile; ?>





<?php if (!isset($_GET['ajaxpage'])) {?></div><?php } ?>






<?php endif; ?>

Hi!
Have you had these errors before the editing of the file?

I have edit this file weeks ago. I know that have to wait for google robot update but I have check it even now and these errors are still there (11.11.2015 date of google checks).

Hi!
Here is very intelligible instruction on how to optimize your website for search engines:

http://fivera.net/hatom-feed-hatom-entry-error-wordpress-solution/?fb_comment_id=fbc_156814557860557_321044_185506044991408

However, you will need to edit theloop.php file ( or content.php - depends on the theme you are using ).

Well if you would read carfully my first post then maybe you could see that I have allready edit theloop.php file. I have include edited code of that file. Despite this 2 errors which I have describe also on my first post are still there.
LIke I have wrote on 1 post (again) - Im using theme: Gameplay

Hi!
Actually, we don't provide a support for website optimization for search engines. I've just told you that you are on the right way since you are editing theloop.php and gave you the link to a very clear instruction on how to fix this problem. You may use this instruction or hire a Search Engine Optimization Specialist.