[v1.6.3] AttributeError - d:\OpenNumismat\open-numismat\OpenNumismat\Reference\Reference.py:451

OpenNumismat: 1.6.3
OS: Windows 7 (6.1.7601)
Python: 3.4.4 (32bit)
Qt: 5.5.1
Locale: es

Traceback (most recent call last):
File "C:\Python34\lib\site-packages\cx_Freeze\initscripts\Console.py", line 27, in
File "open-numismat.py", line 22, in
File "d:\OpenNumismat\open-numismat\OpenNumismat\main.py", line 75, in main
File "d:\OpenNumismat\open-numismat\OpenNumismat\MainWindow.py", line 328, in __init__
File "d:\OpenNumismat\open-numismat\OpenNumismat\MainWindow.py", line 609, in openCollection
File "d:\OpenNumismat\open-numismat\OpenNumismat\Tools\CursorDecorators.py", line 11, in wrapper
File "d:\OpenNumismat\open-numismat\OpenNumismat\MainWindow.py", line 618, in setCollection
File "d:\OpenNumismat\open-numismat\OpenNumismat\Collection\Collection.py", line 683, in loadReference
File "d:\OpenNumismat\open-numismat\OpenNumismat\Reference\Reference.py", line 395, in load
File "d:\OpenNumismat\open-numismat\OpenNumismat\Reference\Reference.py", line 460, in __updateTo1
File "d:\OpenNumismat\open-numismat\OpenNumismat\Reference\Reference.py", line 451, in backup
AttributeError: 'Reference' object has no attribute 'fileName'