以下のように修正しました。
apps/pc_frontend/modules/ashiato/templates/listSuccess.php
<p><?php echo __('Pageview %d Count', array('%d' =>$count)) ?></p>
<ul class="list">
<?php foreach ($pager->getResults() as $ashiato) : ?>
<?php if ($ashiato->getMemberIdFrom()):?>
<li><?php echo op_format_date($ashiato->updated_at, 'XDateTimeJaBr'); ?>
<?php echo link_to($ashiato->Member_2->name, 'member/profile?id=' . $ashiato->Member_2->id); ?></li>
<?php else: ?>
<li><?php echo op_format_date($ashiato->updated_at, 'XDateTimeJaBr'); ?>
<?php echo __('_');?></li>
<?php endif; ?>
<?php endforeach; ?>
</ul>
</div>
apps/mobile_frontend/modules/ashiato/templates/listSuccess.php
<?php foreach ($pager->getResults() as $ashiato) : ?>
<tr><td bgcolor="<?php echo cycle_vars($id, '#e0eaef,#ffffff') ?>">
<?php if($ashiato->getMemberIdFrom()):?>
<?php echo op_format_date($ashiato->updated_at, 'XDateTime'); ?>
<?php echo link_to($ashiato->Member_2->name, 'member/profile?id=' . $ashiato->Member_2->id); ?>
<?php else: ?>
<?php echo op_format_date($ashiato->updated_at, 'XDateTime'); ?>
<?php echo __('_');?>
</td></tr>
<?php endif; ?>
<?php endforeach; ?>
