outputTest.txt

Here is the updated code for your Flask application without any explanation:

```python
from flask import Flask, render_template, request, redirect, url_for

app = Flask(__name__)

# List to store people information
people = []

@app.route('/', methods=['GET', 'POST'])
def index():
    if request.method == 'POST':
        name = request.form.get('name')
        age = request.form.get('age')
        email = request.form.get('email')

        # Append new person to the list
        if name and age and email:
            people.append({
                'name': name,
                'age': age,
                'email': email
            })
            return redirect(url_for('index'))

    return render_template('index.html', people=people)

if __name__ == '__main__':
    app.run(debug=True, use_reloader=False)
```

Make sure your `index.html` template is correctly set up and located in the `templates` folder. Run the application and it should work without the 'Bad file descriptor' error.