Statistics  failed.

/net/marbles/raid1/dorothee/rerefine/cryoem/data_no_H/6fbs_4225/12_2022/6fbs_4225.pdb /net/marbles/raid1/dorothee/rerefine/cryoem/data_no_H/6fbs_4225/12_2022/6fbs_4225.map 3.07
Traceback (most recent call last):
  File "/net/marbles/raid1/dorothee/rerefine/cryoem/rerefine_script.py", line 417, in get_statistics
    assert checked.map_data().as_1d().count(0) != checked.map_data().size() # need data
AssertionError