C++ Vector 3D

std::vector<std::vector<std::vector<Block>>> m_blockArray;
//Initialized Block array
    for (int x = 0; x < 16; x++)
    {
        m_blockArray.push_back(vector<vector<Block>>());
        for (int y = 0; y < 100; y++)
        {
            m_blockArray[x].push_back(vector<Block>());
            for (int z = 0; z < 16; z++)
            {
                m_blockArray[x][y].push_back(Block());
                m_blockArray[x][y][z].Block_load(D3DDevice, debug);

                //m_blockArray[x][y][z].Block_load(D3DDevice, debug, x*2.0f, y*2.0f, z*2.0f);
                /*if (rand() % 100 < 55)
                    m_blockArray[x][y][z].Block_setCubeType(CubeType::air);*/
            }
        }
    }

    //Calculate hidden face
    for (int x = 0; x < 16; x++)
    {
        for (int y = 0; y < 100; y++)
        {
            for (int z = 0; z < 16; z++)
            {
                if (m_blockArray[x][y + 1][z].Block_getCubeType() == CubeType::block && y + 1 < 16) //Top  //First loop error
                    m_blockArray[x][y][z].BlockModel_setBlockFaceTop(false);

                if (m_blockArray[x][y - 1][z].Block_getCubeType() == CubeType::block && y - 1 >= 0) //Bottom
                    m_blockArray[x][y][z].BlockModel_setBlockFaceBottom(false);

                if (m_blockArray[x][y][z - 1].Block_getCubeType() == CubeType::block && z - 1 >= 0) //One
                    m_blockArray[x][y][z].BlockModel_setBlockFaceOne(false);

                if (m_blockArray[x + 1][y][z].Block_getCubeType() == CubeType::block && x + 1 < 16) //Two
                    m_blockArray[x][y][z].BlockModel_setBlockFaceTwo(false);

                if (m_blockArray[x][y][z + 1].Block_getCubeType() == CubeType::block && z + 1 < 16) //Third
                    m_blockArray[x][y][z].BlockModel_setBlockFaceThird(false);

                if (m_blockArray[x - 1][y][z].Block_getCubeType() == CubeType::block && x - 1 >= 0) //Four
                    m_blockArray[x][y][z].BlockModel_setBlockFaceFour(false);
            }
        }
    }