Hi Mohamed,
Please go to "your_site/templates/sj_worldnews/html/com_k2/templates/yt-theme/item.php", finding:
<?php if($this->item->params->get('itemAuthorBlock') && empty($this->item->created_by_alias)): ?>
<!-- Author Block -->
<div class="itemAuthorBlock block">
<?php if($this->item->params->get('itemAuthorImage') && !empty($this->item->author->avatar)): ?>
<img class="itemAuthorAvatar" src="<?php echo $this->item->author->avatar; ?>" alt="<?php echo K2HelperUtilities::cleanHtml($this->item->author->name); ?>" />
<?php endif; ?>
<div class="itemAuthorDetails">
<h3 class="itemAuthorName font-text">
<a rel="author" href="<?php echo $this->item->author->link; ?>"><?php echo $this->item->author->name; ?></a>
</h3>
<?php if($this->item->params->get('itemAuthorDescription') && !empty($this->item->author->profile->description)): ?>
<div class="user-desc"><?php echo $this->item->author->profile->description; ?></div>
<?php endif; ?>
<?php if($this->item->params->get('itemAuthorURL') && !empty($this->item->author->profile->url)): ?>
<span class="itemAuthorUrl"><?php echo JText::_('K2_WEBSITE'); ?> <a rel="me" href="<?php echo $this->item->author->profile->url; ?>" target="_blank"><?php echo str_replace('http://','',$this->item->author->profile->url); ?></a></span>
<?php endif; ?>
<?php if($this->item->params->get('itemAuthorEmail')): ?>
<span class="itemAuthorEmail"><?php echo JText::_('K2_EMAIL'); ?> <?php echo JHTML::_('Email.cloak', $this->item->author->email); ?></span>
<?php endif; ?>
</div>
</div>
<?php endif; ?>
=>
<?php if($this->item->params->get('itemTwitterButton',1) || $this->item->params->get('itemFacebookButton',1) || $this->item->params->get('itemGooglePlusOneButton',1)): ?>
<!-- Social sharing -->
<div class="itemSocialSharing">
<?php if($this->item->params->get('itemTwitterButton',1)): ?>
<!-- Twitter Button -->
<div class="itemTwitterButton">
<a href="https://twitter.com/share" class="twitter-share-button" data-count="horizontal"<?php if($this->item->params->get('twitterUsername')): ?> data-via="<?php echo $this->item->params->get('twitterUsername'); ?>"<?php endif; ?>><?php echo JText::_('K2_TWEET'); ?></a><script type="text/javascript" src="//platform.twitter.com/widgets.js"></script>
</div>
<?php endif; ?>
<?php if($this->item->params->get('itemGooglePlusOneButton',1)): ?>
<!-- Google +1 Button -->
<div class="itemGooglePlusOneButton">
<g:plusone annotation="inline" width="120"></g:plusone>
<script type="text/javascript">
(function() {
window.___gcfg = {lang: 'en'}; // Define button default language here
var po = document.createElement('script'); po.type = 'text/javascript'; po.async = true;
po.src = 'https://apis.google.com/js/plusone.js';
var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(po, s);
})();
</script>
</div>
<?php endif; ?>
<?php if($this->item->params->get('itemFacebookButton',1)): ?>
<!-- Facebook Button -->
<div class="itemFacebookButton">
<div id="fb-root"></div>
<script type="text/javascript">
(function(d, s, id) {
var js, fjs = d.getElementsByTagName(s)[0];
if (d.getElementById(id)) {return;}
js = d.createElement(s); js.id = id;
js.src = "//connect.facebook.net/en_US/all.js#appId=177111755694317&xfbml=1";
fjs.parentNode.insertBefore(js, fjs);
}(document, 'script', 'facebook-jssdk'));
</script>
<div class="fb-like" data-send="false" data-width="200" data-show-faces="true"></div>
</div>
<?php endif; ?>
</div>
<?php endif; ?>
<?php if($this->item->params->get('itemAuthorBlock') && empty($this->item->created_by_alias)): ?>
<!-- Author Block -->
<div class="itemAuthorBlock block">
<?php if($this->item->params->get('itemAuthorImage') && !empty($this->item->author->avatar)): ?>
<img class="itemAuthorAvatar" src="<?php echo $this->item->author->avatar; ?>" alt="<?php echo K2HelperUtilities::cleanHtml($this->item->author->name); ?>" />
<?php endif; ?>
<div class="itemAuthorDetails">
<h3 class="itemAuthorName font-text">
<a rel="author" href="<?php echo $this->item->author->link; ?>"><?php echo $this->item->author->name; ?></a>
</h3>
<?php if($this->item->params->get('itemAuthorDescription') && !empty($this->item->author->profile->description)): ?>
<div class="user-desc"><?php echo $this->item->author->profile->description; ?></div>
<?php endif; ?>
<?php if($this->item->params->get('itemAuthorURL') && !empty($this->item->author->profile->url)): ?>
<span class="itemAuthorUrl"><?php echo JText::_('K2_WEBSITE'); ?> <a rel="me" href="<?php echo $this->item->author->profile->url; ?>" target="_blank"><?php echo str_replace('http://','',$this->item->author->profile->url); ?></a></span>
<?php endif; ?>
<?php if($this->item->params->get('itemAuthorEmail')): ?>
<span class="itemAuthorEmail"><?php echo JText::_('K2_EMAIL'); ?> <?php echo JHTML::_('Email.cloak', $this->item->author->email); ?></span>
<?php endif; ?>
</div>
</div>
<?php endif; ?>
Thanks