Ingest failed for medium resolution bias images

2019-02-27 14:56:27.834Z cmds             20 Actor.py:499 new cmd: ingest filepath=/data/pfs/pfs/2019-02-27/PFLA01292114.fits
2019-02-27 14:56:27.835Z cmds             20 Actor.py:499 new cmd: detrend filepath=/data/pfs/pfs/2019-02-27/PFLA01292114.fits
root INFO: Loading config overrride file '/opt/lsst/software/stack/stack/miniconda3-4.3.21-10a4fa6/Linux64/obs_pfs/c8f11eeeb3a5bdafc8f16fb33da301cab319a441/config/ingest.py'
CameraMapper INFO: Loading exposure registry from /drp/m1/registry.sqlite3
ingest.parse WARN: Unable to find value for dataType (derived from IMAGETYP)
ingest.parse WARN: Unable to find value for expTime (derived from EXPTIME)
ingest.parse WARN: Unable to find value for dateObs (derived from DATE-OBS)
ingest.parse WARN: Unable to find value for taiObs (derived from DATE-OBS)
ingest.parse WARN: translate_field failed to translate field: IMAGETYP not found
ingest.parse WARN: translate_date failed to translate dateObs: DATE-OBS not found
ingest.parse WARN: translate_date failed to translate taiObs: DATE-OBS not found
ingest WARN: Failed to ingest file /data/pfs/pfs/2019-02-27/PFLA01292114.fits: No locations for get: datasetType:raw_filename dataId:DataId(initialdata={'site': 'L', 'category': 'A', 'visit': 12921, 'filter': 'm', 'arm': 'm', 'spectrograph': 1, 'ccd': 1, 'pfsConfigId': 0, 'slitOffset': 0.0}, tag=set())
2019-02-27 14:56:28.329Z cmds             20 CommandLink.py:121 > 1 753 i text='None'
2019-02-27 14:56:28.329Z cmds             20 CommandLink.py:121 > 1 753 : ingest=/data/pfs/pfs/2019-02-27/PFLA01292114.fits'
2019-02-27 14:56:28.341Z cmds             20 CommandLink.py:121 > 1 754 f text="command failed: KeyError(\"Keyword 'DATE-OBS' not found.\",) at /opt/lsst/software/stack/python/miniconda3-4.3.21/lib/python3.6/site-packages/astropy/io/fits/header.py:1675"