I installed the MOAT-module without any adjustments in admin/settings/moat

If I try to assign an URI to a taxonomy term, I get the following message.

warning: file_get_contents(tag/a-tagName-from-my-taxonomy/json/light) [function.file-get-contents]:
failed to open stream: No such file or directory in C:\xampp\htdocs\drupal\modules\moat\moat.module on line 264.

Is it possible to add some exeption handling here?