Some messages validating the html:
This resource is reachable but not present in the OPF <manifest>. "Reachable" means that a reference of some kind that points to this resource exists in the epub.
The <language> element is missing.
The <title> element is missing.
attribute 'language' is not declared for element 'script'
attribute 'darget' is not declared for element 'a'
attribute 'onMouseUp' is not declared for element 'a'
value '355.0' does not match regular expression facet '[-+]?(\d+|\d+(\.\d+)?%)'
attribute 'width' is not declared for element 'td'
empty content is not valid for content model '(caption?,(col*|colgroup*),thead?,tfoot?,(tbody+| tr+))'