after update it shows the error message "Cannot read property ‘aoOpenRows’ of null" at this line "var aoOpenRows = oSettings.aoOpenRows"

this.fnIsOpen = function(nTr) {
    var oSettings = _fnSettingsFromNode(this[DataTable.ext.iApiIndex]);

    var aoOpenRows = oSettings.aoOpenRows;
    for (var i = 0; i < oSettings.aoOpenRows.length; i++) {
        if (oSettings.aoOpenRows[i].nParent == nTr) {
            return true;
    return false;

Source: jquery

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