System.NullReferenceException when using ListObjectAdapter

Question

Hello,

I am working with a legacy Excel Extension codebase where we are populating tables using Microsoft.Office.Tools.Excel. I am encountering a System.NullReferenceException in Microsoft.Office.Tools.Excel.ListObjectAdapter as shown in the picture below:

I have included relevant code below, but I have not been able to solve the issue. I have already checked to ensure that I am correctly logged into Visual Studio and Excel. I have also tried reading documentation without success.

private readonly ApplicationFactory factory;
private async Task ProcessSetting(WorkBookListOFvalues item, Stopwatch s, long time, StringBuilder print)
{
    ListObject tableLo = null;
    DataSet ds = null;
    DataTable data = null;

    try
    {
        try
        {
            globals.Dispatcher.Invoke(() =>
            {
                tableLo = factory.GetVstoObject(ExcelExtensions.GetListObject(TargettyFormLoadAndSave.Action.applicationSettings.Workbook, item.ListObject));
            });
        }
        catch (Exception e)
        {
			// Error handling
            return;
        }

Any help is appreciated.