Both layouts, Portal.html and Home.html, have a typo in line 79, a parameter in the definition of the NAV Menu SkinObject:
<param name="providername="DNNMenuNavigationProvider" />
The correct version is, obviously:
<param name="providername" value="DNNMenuNavigationProvider" />
<param name="providername="DNNMenuNavigationProvider" />
The correct version is, obviously:
<param name="providername" value="DNNMenuNavigationProvider" />