Hi Christian, when you set up the email notifications, you can use the @ icon in the message editor to include specific fields in the message. In your email, you have added two such fields: ${entry1000027} and ${entry1990820639}. You are getting a reference error because the ${entry1000027} field has been deleted. You just have to delete this from the email set up and then you use the @ icon in the editor to include the relevant field. Please try this and confirm.