Hello
in author.php, after uri base, there s a / . This error is also in other templates. I am also wondering why not taking logo from the template parameters ? Just hardcoding this certainly ends up showing t3 or t4 logo on most websites.
<img src="<?php echo JURI::base(); ?>/templates/<?php echo JFactory::getApplication()->getTemplate() ?>/images/logo.png" alt="logo" itemprop="url" />
ends up with
https://www.mysite.com//templates/ja_morgan/images/logo.png