Gallery macro is broken

The Gallery macro shows error exception:

Error trying to draw image gallery org.apache.velocity.exception.ParseErrorException: Encountered "=" at line 64, column 37 of /templates/gallery-dynamic-slideshow.vm Was expecting one of:  ... "-" ... "+" ... "*" ... "/" ... "%" ...  ...  ...  ...  ...  ...  ...  ...  ...

Steps to reproduce this problem:

1. Attach an image file to a page
2. Use gallery macro:
   Example;

   {gallery:title=Test Page}
   

The normal Confluence behavior should returns There are no images attached to this page message to the page if there isn't any images in the page. This problem happens to any types of attachment file. It's working fine in Confluence 2.7, 2.7.3.