检查应用程序并人为调用崩溃时，我得到以下跟踪：
2021-02-16 09:25:50.322 9229-9229/com.x.x.x.debug I/FirebaseCrashlytics: Initializing Firebase Crashlytics 17.3.1
2021-02-16 09:25:50.596 9229-9229/com.x.x.x.debug I/CrashlyticsCore: Initializing Crashlytics 2.6.4.27
2021-02-16 09:25:50.633 9229-9229/com.x.x.x.debug I/CrashlyticsInitProvider: CrashlyticsInitProvider initialization successful
2021-02-16 09:27:02.847 9229-9385/com.x.x.x.debug E/CrashlyticsCore: Error occurred sending report com.crashlytics.android.core.SessionReport@225693b
2021-02-16 09:27:05.941 9848-9848/com.x.x.x.debug I/FirebaseCrashlytics: Initializing Firebase Crashlytics 17.3.1
2021-02-16 09:27:06.100 9848-9848/com.x.x.x.debug I/CrashlyticsCore: Initializing Crashlytics 2.6.4.27
2021-02-16 09:27:06.151 9848-9848/com.x.x.x.debug I/CrashlyticsInitProvider: CrashlyticsInitProvider initialization successful
那些。发送报告时发生错误：
Error occurred sending report com.crashlytics.android.core.SessionReport
没有关于错误原因的更多信息。什么可能导致此错误？