Sitemap XML Error

I've got a warning on google webmaster tools that shows this error:
2968Invalid tag value
This XML tag has an invalid value. Please fix it and resubmit


When i goto the sitemap1.xml I find this on lines 2968, 2969, 2970 respectivley

Code:

 
 <priority>0.0064</priority>
  <lastmod>2009-09-18T09:41:54+00:00</lastmod>
  <changefreq>daily</changefreq>

Is this an easy fix warning, any help greatly appreciated?

There doesn't seem to be anything wrong there.

Check your ranges. you might want to bump it from 0 to 0.1