itemprop attribute was specified, but the element is not a property of any item

Hi there,
Joomla v3.4.8, EasyBlog v5.0.31
got following errors on our live site, details in the site access part, through https://validator.w3.org

Error: The itemprop attribute was specified, but the element is not a property of any item.
From line 20, column 4054; to line 20, column 4142
xt-muted"><div class=eb-post-author itemprop=author itemscope="" itemtype=http://schema.org/Person> <i cl
Error: The itemprop attribute was specified, but the element is not a property of any item.
From line 20, column 4171; to line 20, column 4190
ser"></i> <span itemprop=name> <a hr
Error: The itemprop attribute was specified, but the element is not a property of any item.

In relation with the following part :

<div class=eb-post-author itemprop=author itemscope="" itemtype=http://schema.org/Person> <span itemprop=name> <a href="/Danièle?layout=listings" itemprop=url rel=author>Danièle</a> </span> </div></div></div></div><div class="eb-post-body type-standard"><div class="eb-post-thumb is-full"> <a href=/Conseils/Comment-retrouver-confiance-en-vous class=eb-post-image-cover style="
background-image: url('//http://www.coeursdebreizh.fr/images/easyblog_images/643/b2ap3_medium_Confiance.png');
width: 100%;
height: 400px;"></a>

How can we fix it ?

Cheers,
Lionel