"This phone number cannot be used at this time. Choose a different number."

Hello, I reset my phone yesterday. But now I cannot log in to my icloud account.I am encountering the error shown above. I know this error is due to security reasons. I want you to solve this problem as soon as possible.Because I can't do anything on the phone right now. This phone number is linked to my icloud account. +994 77 528 72 64