I’ve done this by deleting.
sample.
<?php if(sketch_get_option($advertica_shortname."_clientsec_title")){?><h3 class="inline-border"><?php echo sketch_get_option($advertica_shortname."_clientsec_title"); ?></h3><span class="border_left"></span><?php } ?>
<ul class="clients-items clearfix">
</ul>
Go to advertica-lite/includes. Find the client file.