The only H1 tag that’s supposed to be in the homepage is the Title in the header.
There’s no H1 tag, since you chose not to display the title.
You can just ignore what the SEO Quake says.
Warnings like that vary from one SEO plugin to another.
But if you really must add an H1 tag, you can either enable the Title in the header
or add an H1 tag on a widget or the footer (but what’s the point to that, right)