Hi
You have to apply the logo directly in the header.php by doing some customisation in the logo code.
Kindly open the template folder /tpls/blocks/header.php file
<!-- LOGO -->
<div class="col-xs-12 col-sm-3 logo">
<div class="logo-<?php echo $logotype, ($logoimgsm ? ' logo-control' : '') ?>">
<a href="<?php echo JUri::base() ?>" title="<?php echo strip_tags($sitename) ?>">
<?php if($logotype == 'image'): ?>
<img class="logo-img" src="<?php echo JUri::base(true) . '/' . $logoimage ?>" alt="<?php echo strip_tags($sitename) ?>" />
<?php endif ?>
<?php if($logoimgsm) : ?>
<img class="logo-img-sm" src="<?php echo JUri::base(true) . '/' . $logoimgsm ?>" alt="<?php echo strip_tags($sitename) ?>" />
<?php endif ?>
<span><?php echo $sitename ?></span>
</a>
<small class="site-slogan"><?php echo $slogan ?></small>
</div>
</div>
<!-- //LOGO -->
Find and add the logo path directly there.
Hope it helps.
Regards