I think I have some problem.
My address is 9hWttyc1RSwY8FHG6BfTYAwTgphDqxtJyv and I had 7273.916572 NRS.

In the previous NRS, I type dumpprivkey 9hWttyc1RSwY8FHG6BfTYAwTgphDqxtJyv and I got
Private key for address 9hWttyc1RSwY8FHG6BfTYAwTgphDqxtJyv is not known (code -4)

Can you help me?