My customers are not receiving the Autoresponder Email

I have done the same, i get the notification but the person who completed the form does not.

I checked your form "" and did not find any issue with that. You have configured it correctly and it should send auto-responder without any problem. 

Upon taking a closer look at your form, I found that you have enabled form encryption in your form. Please note that auto-responder email will not be sent if the form is encrypted. 

You may like to take a look at the following guide and look at the last "IMPORTANT" section which confirms that auto-responder does not work encrypted form:  https://www.jotform.com/help/344-Encrypted-Forms-and-How-to-Use-Them