问乐加固后，app Crash无法打开，请问是什么原因？

未加固前没有问题正常使用，加固后无法打开

报错

java.util.ConcurrentModificationException

at java.util.ArrayList$Itr.next(ArrayList.java:831)

at android.app.ActivityThread.installContentProviders(ActivityThread.java:5575)

at android.app.ActivityThread.handleBindApplication(ActivityThread.java:5523)

at android.app.ActivityThread.-wrap2(ActivityThread.java)

at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1619)

at android.os.Handler.dispatchMessage(Handler.java:102)

at android.os.Looper.loop(Looper.java:163)

at android.app.ActivityThread.main(ActivityThread.java:6379)

at java.lang.reflect.Method.invoke(Native Method)

at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:904)

at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:794)