this problem still persists with my new iPhone 14

Hi Judith, 

Welcome to the Box Community, I'm happy to help!

Are you perhaps pertaining to extending Shared link expiration? If yes, file owner should be able to extend the link expiration in the link settings by clicking the calendar icon and choosing a new date. 

Take a look at this article to learn more about configuring your Shared link settings: https://support.box.com/hc/en-us/articles/360043697554-Configuring-Individual-Shared-Link-Settings

If this is not the case, do you mind providing more context about the issue that you encounter? 

We look forward to hear from you!

All the Best,