I've tried to run Grouping Analysis and also require the output report in area of 3,256,000,000 square meter (with the 500*500m grids). Unfortunately, i got the "Traceback error" when i'm gonna get the report. I've already make sure the file name without typing "space", and tried to set the Cartographic Partitions in Environment with 4500*4500m grids but it still can't work. If there is any other tips can fix it, please let me know, thanks all.