PROBLEM SOLVED.
Who have some problem with JA_autoshop template can go to templates/ja_template/tpls/blocks/mainbody.php
Now choose your layout or modify all file.
You must replace
<!-- MAIN CONTENT -->
<div id="t3-content" class="t3-content col-xs-12 col-sm-8 col-md-9">
<div class="t3-content-inner">
<?php if($this->hasMessage()) : ?>
<jdoc:include type="message" />
<?php endif ?>
<jdoc:include type="component" />
</div>
</div>
<!-- //MAIN CONTENT -->
with
<!-- MAIN CONTENT -->
<div id="t3-content" class="t3-content col-xs-12 col-sm-8 col-md-9">
<div class="item-page">
<?php if($this->hasMessage()) : ?>
<jdoc:include type="message" />
<?php endif ?>
<jdoc:include type="component" />
</div>
</div>
<!-- //MAIN CONTENT -->
If you have other template find css class of box that contain joomla article, then put class in first div ID.