I just downloaded the new version and got this error trying to open edit or statistics.
Code:
calibre, version 6.25.0
ERROR: Unhandled exception: <b>AttributeError</b>:'NoneType' object has no attribute 'astimezone'
....
Traceback (most recent call last):
File "calibre_plugins.Reading_Goal.main", line 182, in manage_reading_goal
File "calibre_plugins.Reading_Goal.main", line 741, in update_database
File "calibre_plugins.Reading_Goal.main", line 320, in add_to_goal
File "calibre_plugins.Reading_Goal.main", line 549, in get_book_info
AttributeError: 'NoneType' object has no attribute 'astimezone'