After installing Sales Box, the Sales box section is automatically added to your current Shopify theme. 

When you change a new theme, Sales Box often cannot recognize its old position. AND you have to manually update it with this link:

https://shipping.fireapps.io/updateJob

And if it doesn't work, please create a staff account to email: support@fireapps.io for us to log in and add shipping box. Make sure to give us Products, Apps, and Theme access permission, then notice us on by a message. We'll check and help you asap.

Sorry, and hope this helps!

For more details on how to create a staff account, kindly read this article.

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