I am guessing the version from which you upgraded used a JDBM/MapDB/ZoomDB
version that may not be compatible anymore, and now the system will not
start due to those seemingly-corrupt files. The files should have a
GUID/UUID-like name, and with the Remote Loader (RL) stopped you can move
them somewhere else and they will be recreated. This happens sometimes
with upgrades, as other threads in here may show.
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