In theme folder find default.master.tpl (/path/to/vanilla/themes/Colors/views). Open it with prefered editor and find string 28 <strong class="SiteTitle"><a id="SiteLink" "href="{link path="/"}">{logo}</a></strong> and replace it with <strong class="SiteTitle"><a id="SiteLink" href="{link path="/"}">{logo}</a></strong>
Comments
I have fixed it by myself.
In theme folder find default.master.tpl (/path/to/vanilla/themes/Colors/views). Open it with prefered editor and find string 28
<strong class="SiteTitle"><a id="SiteLink" "href="{link path="/"}">{logo}</a></strong>and replace it with<strong class="SiteTitle"><a id="SiteLink" href="{link path="/"}">{logo}</a></strong>Now your logo will be clickable.