Merci Reservation Calendar (Month Crash)

Hi,

I'm new to Drupal and Merci. I've been testing the MERCI Module, and I can't figure out why this error is happening.

I've made a few reservations (in August 2011), when I'm using the "admin/merci/manage/reservations" View. I can see the calendar and it's working well.

The problem is when I try to visualize the reservations in the MONTH's View. In this case, every time I try to see the reservations in a specific month, I receive an HTTP 500 error.

I attached two images, one showing the view working OK (In a month where there aren't reservations) and another image that shows what happen when I try to visualize a month which has some reservations.

Someone has had this problem in the past ?

Cheers.