Favorites' issue

This must be a minor issue but I haven't found a way to fix it: I have an entry in my Favorites menu that points to a folder that shows only in the drop down menu but it's not in the Edit Favorites configuration. Changing the name of the folder, moving it elsewhere or deleting it doesn't get rid of the entry in the menu, it just gives an error message.

Not a big deal but very disturbing. Please help me getting rid of it.

TIA,

Sandro

Should have mentioned that this is DOpus 10.5.4 on a Win7-64 laptop.

It's probably a Smart Favorite.