That new page has exactly the same problem, but I digged further, and the issue is not that there is an extra closing divs, but that there is a missing opening divs.
I understand you are using two columns masonry post settings, including for the archive page (please confirm all your related settings)
When I do that on my test site, the structure of the archive page is the following
<div class=”wvrx-posts”>
<div id=”blog-posts” class=”cf”>
<div class=”cf blog-post blog-post-cols-2″>
.
</div> <!– .blog-post –>
<div class=”cf blog-post blog-post-cols-2″>
.
</div> <!– .blog-post –>
</div> <!– #blog-posts –>
</div>
But on your pages it shows
<div class=”wvrx-posts”>
<div class=”cf blog-post blog-post-cols-2″>
.
</div> <!– .blog-post –>
<div class=”cf blog-post blog-post-cols-2″>
.
</div> <!– .blog-post –>
</div> <!– #blog-posts –>
The Opening div with the ID #blog-posts is missing, but its closing div is there, creating an open/close tag HTML error
if you have not already done so, you need to test deactivating ALL non weaver plugin, to check if one could be responsible for that.
Next you need to make sure you that have the latest versions of everything weaver related.
@weaver can you think of anything that could be responsible for the missing Opening div for the 2 column masonry archive post page??