Error: Cannot access empty property

Hi there,

I'm getting this error

Error: Cannot access empty property: Cannot access empty property

when Comments module is enabled for Joomrecipe only.
Please have a look at this.
The menu item is a link to a joomla's article containing only 3 words (just to test the module). But it doesn't matter if the menu link is a joomla article or a Joomrecipe's related item.

When the module is enabled for all it works (per say), it shows only Joomla's article comments, and only as far as the limit is 5 (or lower). If I set limit 6 (or greater) I get again the same error Error:

Cannot access empty property

(but there are more than 5 joomla's article comments as you can see surfing all

Test

menu items.

Any hint?

Thanks in advance!