Hello. How can the logo link to the homepage? Please help. Thank you in advance.

Dear sir,

Please go to the file plugins\system\yt\includes\site\lib\yt_template.php and find:
<a class="logo" href="" title="<?php echo $app->getCfg('sitename'); ?>">
<img data-placeholder="no" src="<?php echo $url; ?>" alt="<?php echo $app->getCfg('sitename'); ?>" style="<?php echo $logoWidth. $logoHeight ?>" />
</a>
=> You can edit href="" to href="YOUR_LINK"

Thanks