[v1.8.20] KeyError - /usr/lib/python3/dist-packages/OpenNumismat/Collection/HeaderFilterMenu.py:31

OpenNumismat: 1.8.20
OS: Linux 4.19.0-13-amd64 (#1 SMP Debian 4.19.160-2 (2020-11-28))
Python: 3.9.2 (64bit)
Qt: 5.15.2
Locale: pl

Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/OpenNumismat/Collection/HeaderFilterMenu.py", line 31, in __lt__
return StatusesOrder[left] < StatusesOrder[right]
KeyError: 'Sprzedane'