[v1.8.3] AttributeError - d:\OpenNumismat\open-numismat\OpenNumismat\MainWindow.py:830

OpenNumismat: 1.8.3
OS: Windows 10 (10.0.18362)
Python: 3.4.4 (32bit)
Qt: 5.5.1
Locale: es

Traceback (most recent call last):
File "d:\OpenNumismat\open-numismat\OpenNumismat\MainWindow.py", line 727, in openCollectionEvent
File "d:\OpenNumismat\open-numismat\OpenNumismat\MainWindow.py", line 761, in openCollection
File "d:\OpenNumismat\open-numismat\OpenNumismat\MainWindow.py", line 799, in __closeCollection
File "d:\OpenNumismat\open-numismat\OpenNumismat\MainWindow.py", line 830, in __saveParams
AttributeError: 'NoneType' object has no attribute 'pagesParam'