Blender game Error Totblock: 13

Hi :wink:

I try to create an animate texture in the Blender Game Engine with this tutorial :

Thats work, but in the console windows, I can see this message :

Error Totblock: 13

Here is the file with the error :

I have Blender 2.71 and Windows Vista.

Thank you in advance for your answer.

Sorry if the translate is not correct, Iā€™m French and I not verry good speek English.