Why is my WPF application crashing?

Question

WPF

Hello everyone, the essence of the question is this:
there is an application on WPF, inside the Grid there is a button responsible for generating a report in Word, but for some reason after clicking on it, the program crashes, what could be the reason?

Button code from the test application, here it is enough to open Word, but the error still occurs

private void Button_Click(object sender, RoutedEventArgs e)
        {
            Microsoft.Office.Interop.Word.Application app = new Microsoft.Office.Interop.Word.Application();
            Document doc = app.Documents.Add(Visible: true);
            app.Documents.Open(@"C:\Users\Name\Documents\1.docx");
            Console.ReadLine();
            doc.Close();
            app.Quit();
        }

Answer 1

It is necessary to understand under the debugger on which line it crashes and dance from there.

Answer 2

https://github.com/UNIT6-open/TemplateEngine.Docx try this lib, why bother with your bike. There is an article about it on Habré, where it is written in Russian how to use it.