Hi

Hiske · 04-16-2026, 12:41 PM

I am Hiske and new on this forum.
I have recently downloaded and installed the calibre software on my HP laptop running win11, imported my ebooks (2000 pc) after a while the library was completed, but, every click on a book or title or writer or everything else, I get a popup with error below.

does anyone has a solution?
thanks in advance, Hiske.

Error statement:
calibre, version 9.7.0
FOUT: Niet afgehandelde fout: <b>IOError</b>:disk I/O error

calibre 9.7 embedded-python: True
Windows-11-10.0.22631-SP0 Windows ('64bit', 'WindowsPE')
('Windows', '11', '10.0.22631')
Python 3.14.2
Windows: ('11', '10.0.22631', 'SP0', 'Multiprocessor Free')
Interface language: nl
EXE path: C:\Program Files\Calibre2\calibre.exe
Traceback (most recent call last):
File "calibre\gui2\library\views.py", line 1635, in _debounce_book_display
File "calibre\gui2\book_details.py", line 1604, in show_data
File "calibre\gui2\book_details.py", line 1192, in show_data
File "calibre\gui2\book_details.py", line 323, in render_html
File "calibre\gui2\book_details.py", line 406, in render_data
File "calibre\ebooks\metadata\book\render.py", line 342, in mi_to_html
File "calibre\ebooks\metadata\book\render.py", line 169, in add_other_links
File "calibre\gui2\book_details.py", line 400, in item_id_if_has_note
File "calibre\db\cache.py", line 89, in call_func_with_lock
File "calibre\db\cache.py", line 695, in notes_for
File "calibre\db\backend.py", line 1042, in notes_for
File "calibre\db\notes\connect.py", line 283, in get_note
File "calibre\db\backend.py", line 427, in get
File "C:\t\t\apsw-lcy2rew4\src\cursor.c", line 202, in resetcursor
apsw.IOError: disk I/O error

DNSB · 04-16-2026, 04:49 PM

What type of disk is the library stored on? How much free space is there? Is the library stored on a local hard drive or is it stored on a network storage?

I would suggest continuing this discussion in the calibre forum.

04-16-2026, 12:41 PM	#1
Hiske Junior Member Posts: 1 Karma: 10 Join Date: Apr 2026 Device: ipad	Hi I am Hiske and new on this forum. I have recently downloaded and installed the calibre software on my HP laptop running win11, imported my ebooks (2000 pc) after a while the library was completed, but, every click on a book or title or writer or everything else, I get a popup with error below. does anyone has a solution? thanks in advance, Hiske. Error statement: calibre, version 9.7.0 FOUT: Niet afgehandelde fout: <b>IOError</b>:disk I/O error calibre 9.7 embedded-python: True Windows-11-10.0.22631-SP0 Windows ('64bit', 'WindowsPE') ('Windows', '11', '10.0.22631') Python 3.14.2 Windows: ('11', '10.0.22631', 'SP0', 'Multiprocessor Free') Interface language: nl EXE path: C:\Program Files\Calibre2\calibre.exe Traceback (most recent call last): File "calibre\gui2\library\views.py", line 1635, in _debounce_book_display File "calibre\gui2\book_details.py", line 1604, in show_data File "calibre\gui2\book_details.py", line 1192, in show_data File "calibre\gui2\book_details.py", line 323, in render_html File "calibre\gui2\book_details.py", line 406, in render_data File "calibre\ebooks\metadata\book\render.py", line 342, in mi_to_html File "calibre\ebooks\metadata\book\render.py", line 169, in add_other_links File "calibre\gui2\book_details.py", line 400, in item_id_if_has_note File "calibre\db\cache.py", line 89, in call_func_with_lock File "calibre\db\cache.py", line 695, in notes_for File "calibre\db\backend.py", line 1042, in notes_for File "calibre\db\notes\connect.py", line 283, in get_note File "calibre\db\backend.py", line 427, in get File "C:\t\t\apsw-lcy2rew4\src\cursor.c", line 202, in resetcursor apsw.IOError: disk I/O error

04-16-2026, 04:49 PM	#2
DNSB Bibliophagist Posts: 51,384 Karma: 179640714 Join Date: Jul 2010 Location: Vancouver Device: Kobo Sage, Libra Colour, Lenovo M8 FHD, Paperwhite 4, Tolino epos	What type of disk is the library stored on? How much free space is there? Is the library stored on a local hard drive or is it stored on a network storage? I would suggest continuing this discussion in the calibre forum. Last edited by DNSB; 04-16-2026 at 05:04 PM.