Hi! I understand you're having trouble retrieving your saved ESTA application and encountering an error. Let’s get this figured out together.

Can you tell me exactly what error message you are seeing when you try to retrieve your application? Also, are you entering your details exactly as you did when you first filled out the form—like your passport number, name, and birthdate? Sometimes even small differences can cause the system not to find the saved application.

In the meantime, here are a few steps you can try:

1. Visit the official ESTA site: https://esta.cbp.dhs.gov
2. Use the "Check Existing Application" or "Check ESTA Status" options.
3. Carefully enter your information exactly as it appeared on your saved application.
4. If the system still says no application found, it’s possible there was a typo or error on the original application, which means you might need to apply again.

If you want, I can guide you through submitting a new application or help check for common issues like browser settings or security configurations that might interfere with accessing the site.

Could you share more details about the error message? That way, I can offer more specific help.