Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/apport/report.py", line 228, in _run_hook
    symb['add_info'](report, ui)
  File "/usr/share/apport/general-hooks/ubuntu.py", line 84, in add_info
    apport.hookutils.attach_casper_md5check(report,
  File "/usr/lib/python3/dist-packages/apport/hookutils.py", line 1016, in attach_casper_md5check
    check = json.loads(report['CasperMD5json'])
  File "/usr/lib/python3.9/collections/__init__.py", line 1058, in __getitem__
    raise KeyError(key)
KeyError: 'CasperMD5json'