android: saving json to sqlite

i'm a new bie in android and java i want to save a table from sql server(external database) to sqlite(internal database). 1. my json is not getting stored and every record is same like this "com.example.db_client.DeptTable@b3e4e9e0" when i opens the db file in sqlite browser. I don't understand what is this.

2. 
   

   when i run my app i sometimes get this exception and sometimes i don't.

   
   

   FATAL EXCEPTION: main Process: com.example.db_client, PID: 1697 java.lang.IllegalArgumentException: Activity DeptActivity does not have a parent activity name specified. (Did you forget to add the android.support.PARENT_ACTIVITY element in your manifest?)

   
   

I really need help please look into my problem. thanks in advance.