I don't understand why you would need to sign address and use password and seed phrase.
This is just external receive address, you don't have to do anything with it, just use one from your hardware wallet or cold storage.
Maybe something is lost in translation since I think you are mot a very fluent English language speaker, and maybe I didn't understand you correctly.
Perhaps that was it but then, here is a screenshot from where I was held. I just had to attempt the process again to access that and my screenshot is just the next phase after the screenshot you uploaded earlier.
At that phase, I was required to sign my address as the arrow indicates but all attempts to do that successfully proved abortive or perhaps I didn’t get them right in what way or what was required to sign my address but, I attempted my password and seed phrase yet, none was successful.
