why I cannot set up the shipping address valid
I can tell that you're facing difficulties in setting up a valid shipping address, and I apologize for the inconvenience. Validating shipping addresses is an essential part of ensuring smooth and accurate deliveries. 

To address this issue, please ensure that you are entering the correct information in the required fields. Double-check the street name, house number, apartment or suite number, postal code, and city to make sure they are accurate. It's also crucial to verify that the format you are using matches the required format for your location.

If you continue to experience difficulties, please provide me with more specific details about the error message or any error codes you might be encountering. This information will help me investigate and provide you with more personalized assistance to resolve the issue promptly.