Running problem of a file "scans.json"

[Clancy-wu]

My dmriprep version is 0.5.0, and i just meet a runing problem as follows:
I organized my DICOM files (dwi + T1) to BIDS format via heudiconv, and my dataset have passed the validation on bids-validator online webside.
However, unfortunately, the docker dmriprep processing cannot work and continue to report error on my BIDS dataset, which point out "./scans.json" under the red [ERR] informations.
When i deleted the scans.json file, the dmriprep works well.
Is this situation normal or abnormal ? Should i always to delete the scans.json file or it just a wrong step on my BIDS transformation ?
Looking forward to your reply.