Describe the bug
When I add a new entry/make a change and I switch screens and let the database go into auto-lock. I get an error: "Empty path name is not legal."
Database does not get synced before it goes in to auto-lock. I have had this for a while, but never bothered to make a report. Currently using latest plugin 4.0.6

To Reproduce
Steps to reproduce the behavior:

1. Create new entry.
2. Let database go in to auto-lock.
3. Small window with error appears, see screenshot.

Expected behavior
Sync database before it goes into auto-lock

Screenshots
https://imgbox.com/6mDBmfi6

Please complete the following information:

• OS: Windows 10 x64 version 20H2 build 19042.867
• Browser N/A
• Version 4.0.6-beta

Additional context
N/A