Broken HTML structure with custom post type

Hi,

I have created a custom post type and enabled the avia builder in the functions.php. For those pages, the HTML is created wrong:

<!-- end header -->
</header>
		
	<div id='main' class='all_colors' data-scroll-offset='198'>

	</div></div></div><!-- close content main div --></div></div><div id='section-casestudy' class='avia-section main_color avia-section-default avia-no-border-styling avia-full-stretch avia-bg-style-scroll    av-minimum-height av-minimum-height-75 container_wrap fullsize' style='background-repeat: no-repeat; background-image: url(xxx.jpg);background-attachment: scroll; background-position: top center;  '  data-section-bg-repeat='stretch'><div class='container' ><div class='template-page content  av-content-full alpha units'><div class='post-entry post-entry-type-page post-entry-1337'><div class='entry-content-wrapper clearfix'>

IMHO, it should look like:

<!-- end header -->
</header>
		
	<div id='main' class='all_colors' data-scroll-offset='198'>

	<div class='stretch_full container_wr.....

It looks like the main-div gets closed too early, without the real content. The content is included after it.

Thanks
Matthias