Retrieve BER values from Optisystem

Hi

i'm trying to retrieve BER values from optisystem and save them into CSV file. At line 13, I receive this error: Unrecognized method, property, or field 'System' for class 'COM.OptiSystem_Application'.

% Retrieves BER Analyzer results and saves them to a CSV file.

% Define the path to your OptiSystem project
optisystemProjectPath = 'C:\Users\Me\Documents\FSO\Simulations\Turbulence.osd';

% Define output CSV file path
outputCSV = 'C:\Users\Me\Documents\FSO\Simulations\ber_results.csv';

% Start OptiSystem COM server
optisystem = actxserver('OptiSystem.Application');

% === project loading ===
systemDoc = optisystem.System;
systemDoc.Load(optisystemProjectPath);

% Run simulation
systemDoc.Calculate;

% === Retrieve BER values ===
berData = {};
componentCount = systemDoc.ComponentsCount;

for i = 1:componentCount
    component = systemDoc.GetComponent(i);
    compName = component.Name;

    if contains(compName, 'BER Analyzer', 'IgnoreCase', true)
        try
            result = component.GetResult('BER');
            berValue = result.GetValue;
            berData{end+1,1} = compName; %#ok<SAGROW>
            berData{end,2} = berValue;
            fprintf('BER from %s: %e\n', compName, berValue);
        catch ME
            fprintf('No valid BER in %s (%s)\n', compName, ME.message);
        end
    end
end

% === Save results to CSV ===
if ~isempty(berData)
    berTable = cell2table(berData, 'VariableNames', {'Component', 'BER'});
    writetable(berTable, outputCSV);
    fprintf('BER results saved to %s\n', outputCSV);
else
    warning('No BER Analyzer components found.');
end

% Close project and release COM
systemDoc.Close;
delete(optisystem);