confused on this error
I'm having trouble understanding what this error is trying to tell me
manager_invoices.cssquare_manager.csmanager_invoices.cssquare_manager.csvoid square_manager+<ListInvoices>d__5.MoveNext(): System.NullReferenceException: Object reference not set to an instance of an object.manager_invoices.csListInvoicesResponse result = await square_manager.ListInvoices(); square_manager.cspublic static async Task<ListInvoicesResponse> ListInvoices() {
try {
var result = await client.InvoicesApi.ListInvoicesAsync(locationId: null);
return result;
}