Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/apport/report.py", line 265, in _run_hook
    symb["add_info"](report, ui)
  File "/usr/share/apport/general-hooks/ubuntu.py", line 82, in add_info
    apport.hookutils.attach_casper_md5check(
  File "/usr/lib/python3/dist-packages/apport/hookutils.py", line 1125, in attach_casper_md5check
    mismatches = check["checksum_missmatch"]
                 ~~~~~^^^^^^^^^^^^^^^^^^^^^^
KeyError: 'checksum_missmatch'