[Plugin: TheThe Tabs and Accordions] Invalid xHtml – strange tag

Hi everyone,
I have some problem with the validation for [toggles] elements. It’s strange because in validator’s output I get some <p> and </p> tag like these:

<div id="thethe-toggle-1" class="thethe-toggle-group"><h3 class="thethe-toggle-header"><a href="#thethe-togle-content-6775">Title</a></h3><div id="thethe-togle-content-6775" class="thethe-toggle-content"></p>

or these:

<p></div><h3 class="thethe-toggle-header"><a href="#thethe-togle-content-2283">Title</a></h3><div id="thethe-togle-content-2283" class="thethe-toggle-content"></p>

Why there are these paragraphs????

I’ve checked my post html code in WP Dashboard, but it looks right…
I’ve also checked the class.js-toggle.php file but it’s clean…obviously ??

I don’t understand at all…

So…can anyone help me, please?

Thanks
supergiù

https://www.ads-software.com/extend/plugins/thethe-tabs-and-accordions/