Hi
I have recently had to replace my old PC which broke.
I now have a new Windows 10 PC and installed Calibre 4.11.2 from scratch but used a copy of the old Calibre settings folder I had saved. Everything seems O.K.
Unfortunately , when I use and close down the Calibre Editor, the following error message now appears.
There seem to be no bad effects from this but I would like to fix whatever is causing it.
Can anyone help?