I try to  enter the secondary delivery address
I appreciate that you're trying to enter your secondary delivery address. The process of entering a secondary delivery address may vary depending on the platform or service you are using. However, in most cases, you can follow these steps:

1. Log in to your account and navigate to the settings or profile section.
2. Look for the option to manage your addresses or shipping information.
3. Click on the option to add a new address.
4. Fill in the required fields with the details of your secondary delivery address, including the street name, apartment or unit number, city, state, and zip code.
5. Double-check the information you entered to ensure accuracy.
6. Save the changes and make sure your secondary delivery address is selected as the default address if necessary.

If you encounter any specific issues or errors during this process, please provide more details so that I can assist you more effectively.