After the new upgrade to the new version 3.0 my website dont pass w3c validation with this erros:
All this errors is caused by the plugin
No Character Encoding Found! Falling back to UTF-8.
Unable to Determine Parse Mode!
No DOCTYPE found, and unknown root element. Aborting validation.
No Character encoding declared at document level
Is a bug of the plugin. In 2 websites I use the plugin is the same errors