Rejected update of an ios app due to blanc screen for iPad running iOS 13.6 on Wi-Fi

I tryed to update an app on ios store but I had this probelm.

I hope someone could help (I don’t have an ipad to test the app)

here the problem:
We discovered one or more bugs in your app when reviewed on iPhone and iPad running iOS 13.6 on Wi-Fi. Specifically, no content was displayed after launching the app and waiting a few minutes: we were stuck on a blank screen. Next Steps To resolve this issue, please run your app on a device to identify any issues, then revise and resubmit your app for review. If we misunderstood the intended behavior of your app, please reply to this message in Resolution Center to provide information on how these features were intended to work. For new apps, uninstall all previous versions of your app from a device, then install and follow the steps to reproduce the issue. For updates, install the new version as an update to the previous version, then follow the steps to reproduce the issue. Resources For information about testing your app and preparing it for review, please see Technical Note TN2431: App Testing Guide. For a networking overview, please review About Networking.

I am having the same problem.