C++ Boot serialization cause a segmentation fault

Hello so i have thous two classes and im trying to deserialize them using boost

class WorldItem
{
private:
    friend class boost::serialization::access;
    template <class Archieve>
    void serialize(Archieve &ar, const unsigned int version)
    {
        ar &foreground;
        ar &background;
        ar &breakLevel;
        ar &breakTime;
        ar &water;
        ar &fire;
        ar &glue;
        ar &red;
        ar &green;
        ar &blue;
    }

public:
    int foreground = 0;
    int background = 0;
    int breakLevel = 0;
    long long int breakTime = 0;
    bool water = false;
    bool fire = false;
    bool glue = false;
    bool red = false;
    bool green = false;
    bool blue = false;
};

class Worlds
{
private:
    friend class boost::serialization::access;
    template <class Archieve>
    void serialize(Archieve &ar, const unsigned int version)
    {
        ar &width;
        ar &height;
        ar &name;
        for (int i = 0; i < 100 * 60; i++)
        {
            ar &items[i];
        }
        ar &owner;
        ar &weather;
        ar &isPublic;
        ar &isNuked;
    }

public:
    int width;
    int height;
    string name;
    WorldItem *items;
    string owner = "";
    int weather = 0;
    bool isPublic = false;
    bool isNuked = false;
};

So here im creating a world in this way

Worlds generateWorld(string name, int width, int height)
{
    Worlds world;
    world.name = name;
    world.width = width;
    world.height = height;
    world.items = new WorldItem[100 * 60];
 }

and here im using this function to serialize the world

std::stringstream serialize_world(Worlds world)
{
    std::stringstream str;
    {
        boost::archive::binary_oarchive oa(str);
        oa << world;
    }
    return str;
}

So the serialize_world function is working without issues and i am inserting it value to mysql longblob but now when im trying to get the blob from MySql and deserialize it back by using this function

Worlds deserialize(std::string world)
{

    Worlds wld;
    std::istream *blobdata = WORLD_DATA(world);
    {
    boost::archive::binary_iarchive ia(*blobdata);
    ia >> wld;
    }
    return wld;
}

im getting a Segmentation fault (core dumped) i dont know whats wrong Thanks.