By default, Gnote keeps notes created by the user at ~/.local/share/gnote/ and their permissions are Owner: Me Read and write, Group: your-username Read-only, and Others Read-only. Backup your Gnote notes and save them in a safe place.
Remove and purge Gnote and then reinstall it.
sudo apt purge gnote
sudo apt install gnote
If this doesn't work try deleting all your Gnote notes except for the backups, and check if Gnote can save notes automatically if it is started empty without any old notes in its Notebook(s). You can import your old notes later from the backed up notes.
By default, Gnote keeps notes created by the user at
~/.local/share/gnote/and their permissions are Owner: Me Read and write, Group: your-username Read-only, and Others Read-only. Backup your Gnote notes and save them in a safe place.Remove and purge Gnote and then reinstall it.
If this doesn't work try deleting all your Gnote notes except for the backups, and check if Gnote can save notes automatically if it is started empty without any old notes in its Notebook(s). You can import your old notes later from the backed up notes.