Fail to parse blueprint

[AR2000AR]

The dump command return this error
Ammo.txt

$ dspbptk dump N_Mall/Ammo.txt 
Traceback (most recent call last):
  File "/home/ar2000/.local/bin/dspbptk", line 62, in <module>
    mc.run(sys.argv[1:])
  File "/home/ar2000/Documents/Programmation/Python/dspbptk/MultiCommand.py", line 120, in run
    parseresult.cmd.action(parseresult.cmd.name, parseresult.args)
  File "/home/ar2000/Documents/Programmation/Python/dspbptk/BaseAction.py", line 25, in __init__
    self.run()
  File "/home/ar2000/Documents/Programmation/Python/dspbptk/ActionDump.py", line 33, in run
    bpd = bp.decoded_data
  File "/home/ar2000/Documents/Programmation/Python/dspbptk/Blueprint.py", line 78, in decoded_data
    return BlueprintData.deserialize(self._data)
  File "/home/ar2000/Documents/Programmation/Python/dspbptk/BlueprintData.py", line 245, in deserialize
    building = BlueprintBuilding.deserialize(data, offset)
  File "/home/ar2000/Documents/Programmation/Python/dspbptk/BlueprintData.py", line 194, in deserialize
    fields = cls._BLUEPRINT_BUILDING.unpack_head(data, offset)
  File "/home/ar2000/Documents/Programmation/Python/dspbptk/NamedStruct.py", line 49, in unpack_head
    return self.unpack(data[offset : offset + self._struct.size])
  File "/home/ar2000/Documents/Programmation/Python/dspbptk/NamedStruct.py", line 44, in unpack
    values = self._struct.unpack(data)
struct.error: unpack requires a buffer of 61 bytes

Python 3.10.12