Errror when trying to updateChildren at FirebaseDatabase

问题

I am trying to program a Chat Application. But when I try to send a message, by updating Children in my RealtimeDatabase from Firebase I am getting this error:

at com.google.android.gms.internal.zh.zzas(Unknown Source)
      at com.google.android.gms.internal.zg.zzao(Unknown Source)
       at com.google.android.gms.internal.zg.zzar(Unknown Source)
       at com.google.android.gms.internal.zh.zzas(Unknown Source)
       at com.google.android.gms.internal.zg.zzao(Unknown Source)
       at com.google.android.gms.internal.zg.zzar(Unknown Source)
       at com.google.android.gms.internal.zh.zzas(Unknown Source)
       at com.google.android.gms.internal.zg.zzao(Unknown Source)
       at com.google.android.gms.internal.zg.zzar(Unknown Source)
       at com.google.android.gms.internal.zh.zzas(Unknown Source)

And this error goes on and on for a few pages. But I dont know why it happens. Is there a limit of how much I can write to the Database at once?

来源：https://stackoverflow.com/questions/45194089/errror-when-trying-to-updatechildren-at-firebasedatabase