Erro of init_bulk: WARNING : in directory XXX/POSCAR.02x02x02/02.md/sys-0008-0008-0024 nforce in OUTCAR is not equal to settings in INCAR

[biglinn]

When I produce initial data for model trainling. I perform the init_bulk, but there is an erro:
RuntimeError: MD dir: XXX/POSCAR.02x02x02/02.md: find no valid outcar in sys sys-0008-0008-0024, check if your vasp md simulation is correctly done
And I look for the file 'dpgen.log'. There is warnning information:
WARNING : in directory XXX/POSCAR.02x02x02/02.md/sys-0008-0008-0024 nforce in OUTCAR is not equal to settings in INCAR

I wonder why this erro appears. I've followed the tourial to keep 'md_nsteps' and 'NSW' in agreement.

Following is my param.json:

1. {

2. "stages" : [1,2,3,4],
   

3. "elements": ["K","Ta","O"],
   

4. "super_cell": [2, 2, 2],
   

5. "from_poscar": true,
   

6. "from_poscar_path": "./POSCAR",
   

7. "potcars": ["./POTCAR_K", "./POTCAR_Ta","./POTCAR_O"],
   

8. "relax_incar": "./INCAR_rlx",
   

9. "md_incar" : "./INCAR_md",
   

10. "skip_relax": true,
    

11. "scale": [1.00],
    

12. "pert_numb": 100,
    

13. "pert_box": 0.03,
    

14. "pert_atom": 0.01,
    

15. "md_nstep" : 50,
    

16. "coll_ndata": 10000,
    

17. "type_map" : ["K","Ta","O"],
    

18. "_comment": "that's all"
    

19. }