I'm getting the same error when trying to clone an item as I am getting when I try to add a manufacturer.
1. Clone item #1 and it's works just fine. Now I have item #2.
2. I want to clone item #1 again, as item #3 is just a different color.
3. When I press the clone icon, I go to an error message (screenshot attached), but it creates the clone anyway.
4. This is exactly what happens when trying to add a manufacturer to the system, but that happens on the first attempt.
I posted this in the old issues area also, I couldn't get into the new one.