Error: Unexpected error encountered: Memory allocation error in CORE routine B

I get this error when running a fragmentation analysis of a 60,000 ha landscape with 45 different coverages. I had already done the analysis last year and I didn't get that error.Update, I am getting the error because the cell size in my raaster was 1 X 1. Just set the cell size to 5 X 5 and that's it.