Remove Random Text in Container

Hi,
I had just migrated a site for a client, and I noticed that on all the pages just above the footer on the left side “KRIESI” text is appearing.
It is not in the socket which I have disabled but rather appears to be wrapped in the following:
<div class=”container_wrap container_wrap_first main_color fullsize av-blog-meta-comments-disabled”
<div container template-blog
<main class=”content av-content-full alpha units” role=”main” itemprop=”mainContentOfPage” itemscope=”itemscope” itemtype=”https://schema.org/Blog”&gt;
<<article class=”post-entry post-entry-type-standard post-entry-538 post-loop-1 post-parity-odd single-small with-slider post-538 post type-post status-publish format-standard has-post-thumbnail hentry category-press-release” itemscope=”itemscope” itemtype=”https://schema.org/BlogPosting&#8221; itemprop=”blogPost”>

then I have some blog post content which is followed by:
<div class=”single-small”></div>
<!–end content–>
</main>
:: after
</div>
<!–end container–>
</div>
<!– close default .container_wrap element –>
“kriesi”

I can’t find where it is being generated and how to remove it. Any help is welcome.