[v1.8.3] AttributeError - d:\OpenNumismat\open-numismat\OpenNumismat\Reports\ExportList.py:156

OpenNumismat: 1.8.3
OS: Windows 10 (10.0.17134)
Python: 3.4.4 (32bit)
Qt: 5.5.1
Locale: ru

Traceback (most recent call last):
File "d:\OpenNumismat\open-numismat\OpenNumismat\MainWindow.py", line 714, in saveTable
File "d:\OpenNumismat\open-numismat\OpenNumismat\ListView.py", line 248, in saveTable
File "d:\OpenNumismat\open-numismat\OpenNumismat\Reports\ExportList.py", line 140, in writeHeader
File "d:\OpenNumismat\open-numismat\OpenNumismat\Reports\ExportList.py", line 156, in __prepareStr
AttributeError: 'NoneType' object has no attribute 'encoding'