苹果appstore审核今天突然出现ITMS-90683问题？？

Dear Developer,
We identified one or more issues with a recent delivery for your app, "约学-专注校园线下社交" 1.3.0 (38). Please correct the following issues, then upload again.
ITMS-90683: Missing Purpose String in Info.plist - Your app's code references one or more APIs that access sensitive user data. The app's Info.plist file should contain a NSBluetoothAlwaysUsageDescription key with a user-facing purpose string explaining clearly and completely why your app needs the data. Starting Spring 2019, all apps submitted to the App Store that access user data are required to include a purpose string. If you're using external libraries or SDKs, they may reference APIs that require a purpose string. While your app might not use these APIs, a purpose string is still required. You can contact the developer of the library or SDK and request they release a version of their code that doesn't contain the APIs. Learn more (https://developer.apple.com/documentation/uikit/core_app/protecting_the_user_s_privacy).
Best regards,
The App Store Team

以前都没问题，今天突然就这样了？？