If I run the abaqus verify info= system command I see that both the fortan compiler and linker are correctly identified and listed.

When I ran the veriy -user_std command, I am getting an error message:

Analysis initiated from SIMULIA established products
Abaqus JOB std_user
Abaqus 2020
Abaqus License Manager checked out the following licenses:
Abaqus/Standard checked out 5 tokens from Flexnet server xxxxxxxx.
<334 out of 622 licenses remain available>.
Begin Compiling Abaqus/Standard User Subroutines
5/3/2024 5:21:17 PM
Intel(R) Fortran Intel(R) 64 Compiler Classic for applications running on Intel(R) 64, Version 2021.12.0 Build 20240222_000000
Copyright (C) 1985-2024 Intel Corporation.  All rights reserved.

ifort: remark #10448: Intel(R) Fortran Compiler Classic (ifort) is now deprecated and will be discontinued late 2024. Intel recommends that customers transition now to using the LLVM-based Intel(R) Fortran Compiler (ifx) for continued Windows* and Linux* support, new language support, new language features, and optimizations. Use '/Qdiag-disable:10448' to disable this message.
End Compiling Abaqus/Standard User Subroutines
Begin Linking Abaqus/Standard User Subroutines
  Creating library standardU.lib and object standardU.exp
End Linking Abaqus/Standard User Subroutines
5/3/2024 5:21:18 PM
Begin Analysis Input File Processor
5/3/2024 5:21:18 PM
Run pre.exe
5/3/2024 5:21:18 PM
End Analysis Input File Processor
Begin Abaqus/Standard Analysis
5/3/2024 5:21:18 PM
Run standard.exe
5/3/2024 5:21:19 PM
Abaqus Error: Abaqus/Standard Analysis exited with an error - Please see the 
message file for possible error messages if the file exists.
Begin SIM Wrap-up
5/3/2024 5:21:20 PM
Run SMASimUtility.exe
5/3/2024 5:21:20 PM
End SIM Wrap-up
Abaqus/Analysis exited with errors
 

It seems that the .for routine is compiled and linked correctly but when the solver is called the system crashes.

Any suggestion?