Fatal error: Call to undefined function post_typesparklingupports()

Fatal error: Call to undefined function post_typesparklingupports() in C:\wamp\www\projecten\test\wordpress-3.8.2\wp-content\themes\sparkling\comments.php on line 65.

The error appears at the bottom of a Post.

This only appears when comments are disabled.

This is already fixed with Sparkling 1.2.1 update and you can already replace comments.php with content from here: http://themes.svn.wordpress.org/sparkling/1.2.1/comments.php

Otherwise, you can hold back for automated updated via WordPress dashboard which will be available in few days.