[jprobibs]

I have been using Calibre for several years. I have been on 9.3.0 and was editing some metadata on some items in my library. During this process, I had occasion to shut down Calibre and restart it soon after. I got a message stating, "There was an error during Calibre startup. Parts of Calibre may not function". Here is the error log the notice provided:

calibre, version 9.3.1

ERROR: Startup error: There was an error during calibre startup. Parts of calibre may not function. Click "Show details" to learn more.

Traceback (most recent call last):

File "calibre\gui2\main.py", line 307, in initialize_db_stage2

File "calibre\gui2\main.py", line 250, in start_gui

File "calibre\gui2\ui.py", line 367, in initialize

File "calibre\gui2\tag_browser\ui.py", line 136, in init_tag_browser_mixin

File "calibre\gui2\tag_browser\view.py", line 417, in set_database

File "calibre\gui2\tag_browser\model.py", line 518, in set_database

File "calibre\db\cache.py", line 89, in call_func_with_lock

File "calibre\db\cache.py", line 1170, in set_pref

File "calibre\db\backend.py", line 168, in set

File "calibre\db\backend.py", line 153, in __setitem__

apsw.ConnectionClosedError: The connection has been closed

I am accessing the same database from two instances of Cailbre on separate machines on the same network (not at the same time, of course). Trying to startup Cailbre on the other machine caused the same error.

I have restarted the machine. I ran the repair function on the 9.3.0 installer. I installed the new version 9.3.1. All with the same result.

Any suggestion would be appreciated.