When I used calibre/reading goal the first time in the new year I got an error message:
Invalid year: These books could not be updated/added to your reading goal because the reading date does not match the reading goal year.
One book was marked: Baustellen der Nation
That book was the only one I was "reading". It belongs to the annual challenge 2024 and to the custom challenge Sachbuch I created last year.
I tried to delete the custom challenge, to remove this book from the challenge, from the reading goal, nothing works. I even tried to edit the json-file but I don't want to mess it up as I don't know what I am doing.
What can I do?