[v1.8.20] SystemError - OpenNumismat\TabView.py:173

OpenNumismat: 1.8.20
OS: Windows 10 (10.0.19045)
Python: 3.10.10 (64bit)
Qt: 5.15.9
Locale: en

RuntimeError: wrapped C/C object of type PageView has been deleted

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File "OpenNumismat\MainWindow.py", line 765, in openCollectionEvent
File "OpenNumismat\MainWindow.py", line 799, in openCollection
File "OpenNumismat\MainWindow.py", line 840, in __closeCollection
File "OpenNumismat\TabView.py", line 173, in clear
SystemError: _PyEval_EvalFrameDefault returned a result with an exception set