Having the same problem as this one here: https://community.upwork.com/t5/New-to-Upwork/Problem-with-Address-Line/td-p/556447
Seems like this problem has been brought up many times before.
Please try typing your address in the "Start typing your address" field, which should autopopulate with different addresses. Once you've chosen your address, the other fields will auto-populate. Let me know if the issue persists so that I can assist you further.