duplicate item dosent work

[miladmodaresi]

    {
        items: {
            captions: {
                title: 'معاونت ها',
            },
            xtype: 'columnChart',
            loadUrl: CST.BUDGET_MODULE_BASE_URL + 'actual/get-department-budget-statistic',
            __params: {
                year: 1398,
                departmentIds: '141,136,145,140,121,135,138,133,142,139'
            },

        },
        xtype: 'panel',
        height: 400,
        width: '100%',
        style: 'border: 1px solid black; border-radius: 10px;',
        margin: 5,
        titleAlign: 'center',
    },
    {
        items: {
            captions: {
                title: 'معاونت ها',
            },
            xtype: 'columnChart',
            loadUrl: CST.BUDGET_MODULE_BASE_URL + 'actual/get-department-budget-statistic',
            __params: {
                year: 1398,
                departmentIds: '112,113,114,116,115'
            },

        },
        xtype: 'panel',
        height: 400,
        width: '100%',
        style: 'border: 1px solid black; border-radius: 10px;',
        margin: 5,
        titleAlign: 'center',
    },

this code return one item