java.lang.RuntimeException: Object should first be initialized.

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java.lang.RuntimeException: Object should first be initialized.	at anywheresoftware.b4a.sql.SQL.checkNull(SQL.java:48)	at anywheresoftware.b4a.sql.SQL.ExecQuerySingleResult2(SQL.java:222)	at leitor.df.texto.keyvaluestore._vv4(keyvaluestore.java:51)	at leitor.df.texto.main._activity_create(main.java:439)	at java.lang.reflect.Method.invokeNative(Native Method)	at java.lang.reflect.Method.invoke(Method.java:515)	at anywheresoftware.b4a.BA.raiseEvent2(BA.java:169)	at leitor.df.texto.main.afterFirstLayout(main.java:102)	at leitor.df.texto.main.access$000(main.java:17)	at leitor.df.texto.main$WaitForLayout.run(main.java:80)	at android.os.Handler.handleCallback(Handler.java:808)	at android.os.Handler.dispatchMessage(Handler.java:103)	at android.os.Looper.loop(Looper.java:193)	at android.app.ActivityThread.main(ActivityThread.java:5334)	at java.lang.reflect.Method.invokeNative(Native Method)	at java.lang.reflect.Method.invoke(Method.java:515)	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:829)	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:645)