***ERROR: USER SUBROUTINE UMAT IS MISSING

when submitting Abaqus-Job under Linux with User Subroutines, it says the user subroutine is missing and cannot be compiled.

/…install_dir… /SMA/site/abaqus_v6.env

we also tried changing the abaqus_v6.enf file, but exactly it is not known what the changes must be for it to work.

We are using RHEL7.4 OS. Running any job locally on GUI as well as subnitting the Job on server, both do not work.

All and any kind of help is really appreciated