This is just a wild guess based on no facts. But it "sounds" like you mistakenly entered inventory as an asset. Then realizing your error before you completed the asset entry process, you dumped out of that part of the program - thus leaving an incomplete asset entry.
So go to the Business Assets section and if there's an asset listed on the asset summary screen that shouldn't be there, click the Delete button to the right of it and delete it.
If that's not it, let me know and I have one more thing to check and try.
