I have continued to get CC-800 errors when I have multiple accounts with a bank and one or more of the accounts have no transactions to download. The error claims the account may be deleted, but of course it isn't. Fixing / Re-Adding and all the other recommended fixes have not corrected it.
I have also tried Validating and "Super Validating" the data file (it found some weird $0 transactions on 0/0/0000), but there was no impact to the error.
And no, there was no restoration from a backup as implied in the error. I just want this error to go away, as there is no error. Just no data.