Checking, excutting and plotting different section of a Fortran subroutine file(Film, Field and some functions subroutines) to finding the problem (Subroutine linked with ABAQUS)

I prepared a Subroutine file that includes Film, Filed, and some function subroutines. It is linked with ABAQUS. Also, it runs very well. But when I changed some input data again I reach the same result. Means with for example 2 or three kinds of input data, the results for all of them are the same. I need someone that has good experience in:
1)Fortran, 2)subroutine linked with Abaqus and 3) material properties in Abaqus

to debug and find the problem.