UEL ERROR

Hello Experts,

I have written a Uel subroutine and trying to implement on a plate constrained at all the edges. 

My UEL Subroutine executes without any errors when the total number of elements are just 15 to 20. But when I increase the number of elements and mesh it more fine, My Uel subroutine aborts with ERROR Code 5.

If I print the JELEM, UEL Subroutine is aborting always at 52th Element, i.e when JELEM=52. Even when I remesh the structure with different size, Uel subroutine consistantly aborts for the 52ed element.