This is an archived snapshot of W3C's public bugzilla bug tracker, decommissioned in April 2019. Please see the home page for more details.
Beta Blogger blogs use a script at the bottom, perhaps for content. This script's content is being parsed (and reported as erroneous) by the validator. Mainly, an extreme amount of "'<' and '/' not allowd here" errors.
Script or not, what's inside an HTML page must follow the rules of HTML. This particular problem with scripts is well explained in: http://www.htmlhelp.com/tools/validator/problems.html#script My suggestion for scripts is to try and have them as separate files (if you can...), which is simpler for validation, better for caching, and generally easier to maintain. (in your case of course, you don't have much control over the scripts your blog host adds... but you can point the problem to them)