bither wallet t709d

I exist a wallet with a multibit core, in which bitcoins are stored. I also tried to found fresh funds – and verify the keys using private keys, but I get the error message “No input data” [url=https://karaayala.com/2019/12/20/hello-world/]https://karaayala.com/2019/12/20/hello-world/[/url] was not found.