Print option not working

Hi all!

I am really happy with my blaskan design, it is great! 🙂

However, I think I have found a bug in the print option. It only seems to work on the latest post. On older posts I get an error message when I try to print (Print This was unable to locate the section you requested. Please contact the site administrator). Other websites using this option seem to have the same problem. See http://www.juniperberry.nl and http://www.mynewroots.org.

A solution is offered here, by editing class-wp-print-this-plugin.php, but I can’t find this file in the blaskan theme. http://ww.wp.xz.cn/support/topic/plugin-wordpress-print-this-section-print-this-was-unable-to-locate-the-section-you-requested?replies=3

Am I overlooking something?

Thanks so much!