Error occurs clicking on Show All

[ep1955]

I'm running Linux Mint 19.3 using the JWM. If I RC on the tray icon and LC on Show All it will open the existing note window sometimes but will open a blank note window every time, sometimes in conjunction with the existing note window (which already contains notes). When I attempt to close the extra empty window, I get the traceback below. Have to kill the app to close the window. Will will try to provide more detail if you can tell me what's needed, eparkerii@carolina.rr.com.

Traceback (most recent call last):
File "/usr/lib/python3.6/tkinter/init.py", line 1705, in call
return self.func(*args)
File "/usr/lib/python3/dist-packages/mynoteslib/sticky.py", line 888, in hide
del(self.master.notes[self.id])
KeyError: '1'