The Square framework is not compatible with Xcode 15.x and crashes immediately because the framework is improperly linked at runtime.
The current workaround is to compile your app with Xcode 14.x, however this will only work for another 6 weeks.
Apple will deny distribution of any app that contains the current framework starting April 29, 2024. Therefore, we cannot distribute the app in 6 weeks until the framework is updated and the linking issue fixed.
ITMS-90725: SDK version issue - This app was built with the iOS 16.4 SDK. Starting April 29, 2024, all iOS and iPadOS apps must be built with the iOS 17 SDK or later, included in Xcode 15 or later, in order to be uploaded to App Store Connect or submitted for distribution.
Please fix the linking issue and provide a framework that is compatible with Xcode 15 ASAP!