I ran dcm2niix via matlab.  Some runs are successful, but one of the runs resulted in error:

Chris Rorden's dcm2niiX version v1.0.20190902 (JP2:OpenJPEG) GCC4.8.2 (64-bit Linux)
Saving defaults file /home/user/.dcm2nii.ini
Found 233 DICOM file(s)
FileSize < (ImageSize+HeaderSize): 1048576 < (1555848+206864)
Warning: File not large enough to store image data: /media/user/4TeraDrive/elections19_rawData_20perScan/election2019_secScans/YY_lab_Hadas_Subj000396_20190702_1120/09_cmrr_mbep2d_Mov4_TR1/Subj000396_09_cmrr_mbep2d_Mov4_TR1_cmrr_mbep2d_Mov4_TR1_00020.dcm
Index exceeds the number of array elements (0).

Can you please help me debug this?

I've tried to overcome it by downloading again the microgl software from this link:
https://www.nitrc.org/frs/?group_id=889 
Because I saw that it might be because of a bug in dcm2niix code, but with no help.

Help will be much appreciated,
Thank you,
Sharon