[Atcold]

Hum, having some issues here. I've just clicked on “Fetch annotations […]” and this pops up.

calibre, version 5.9.0
ERROR: Unhandled exception: <b>TypeError</b>:'&lt;' not supported between instances of 'NoneType' and 'NoneType'

calibre 5.9  embedded-python: True is64bit: True
macOS-10.16-x86_64-i386-64bit Darwin ('64bit', '')
('Darwin', '20.2.0', 'Darwin Kernel Version 20.2.0: Wed Dec  2 20:39:59 PST 2020; root:xnu-7195.60.75~1/RELEASE_X86_64')
Python 3.8.5
OSX: ('10.16', ('', '', ''), 'x86_64')
Interface language: en_GB
Successfully initialized third party plugins: Annotations (1, 14, 0)
Traceback (most recent call last):
  File "calibre_plugins.annotations.annotated_books", line 168, in sort
    self.arraydata = sorted(self.arraydata, key=operator.itemgetter(Ncol), reverse=(order == Qt.DescendingOrder))
TypeError: '<' not supported between instances of 'NoneType' and 'NoneType'

How can I debug this?