Respondents are getting an Invalid Entry error

Hello!! I have liked your app so far but on one form it keeps saying invalid entry but if you hit the back arrow it says successful? Its getting annoying and can't figure it out? Please help? Also is there a way I can get aftercare or a thank u message sent to all my clients who sign in? I would like to send aftercare instructions and a thank you after tattoo?

We would like to apologize for any inconvenience. I have checked the email address you are contacting us from and it is not associated with any JotForm account. May we ask that you provide us the information about your form so we may check the issue you are reporting on our end, please?

With regard to the thank-you message you are planning of sending your form respondents, you can set up an email autoresponder in your form.

Setting-Up-an-Autoresponder-Email

You may also find these guides helpful:

Explanation-of-Email-Notification-and-Autoresponder-Settings

How-to-Edit-the-Email-Template-for-Notifications-and-Autoresponders

Feel free to let us know if you need any further assistance.