ADP statistics. failed.

/net/marbles/raid1/dorothee/rerefine/cryoem/data_no_H/6pmi_20394/12_2021/6pmi_20394.pdb /net/marbles/raid1/dorothee/rerefine/cryoem/data_no_H/6pmi_20394/12_2021/6pmi_20394.map 3.86
Traceback (most recent call last):
  File "/net/marbles/raid1/dorothee/rerefine/cryoem/rerefine_script.py", line 931, in get_composition
    adp_result = model.adp_statistics().result()
  File "/net/cci-filer2/raid1/xp/phenix/phenix-1.20rc4-4434/modules/cctbx_project/mmtbx/model/model.py", line 3747, in adp_statistics
    xray_structure              = self.get_xray_structure(),
  File "/net/cci-filer2/raid1/xp/phenix/phenix-1.20rc4-4434/modules/cctbx_project/mmtbx/model/model.py", line 430, in get_xray_structure
    assert cs is not None
AssertionError