return new Set(parcel.ReadStringArray(), parcel.ReadBooleanArray()...
At
parcel.ReadBooleanArray()
You have no boolean arrays in the constructor
public Set (
    string[] Jugador, 
    int[] Games, 
    int[] NoForzados, 
    int[] Aces, 
    int[] Winners, 
    int[] DobleFaltas, 
    int[] Primeros, 
    int[] PrimerosGanados, 
    int[] Segundos,
    int[] SegundosGanados)
Did you forget to set jugado?
1
solved Why is my Parcelable Creator not working?