Not signed in (Sign In)

Vanilla 1.1.10 is a product of Lussumo. More Information: Documentation, Community Support.

  1.  
    Hey, I just installed Plogger and everything working fine apart from one invalide xhtml error that is on all three templates.
    You can see the error here: http://validator.w3.org/check?uri=http%3A%2F%2Fwww.drinkingsouls.co.uk%2FGallery%2F&charset=%28detect+automatically%29&doctype=Inline&group=0
    Its to do with the </head> end tag and Im unsure of how to fix it, im sure its very simple. I also cant find the page with the closing head tag on.
    Does anyone know how to fix this error?
    Any help is appreciated.
    Thanks