Setting up Hikaserial

-- url of the page with the problem -- : lapeercountyconcertchoir.com/index.php/c...out/step/step-1.html
-- HikaShop version -- : 2.6.1
-- HikaSerial version -- : 1.10.2
-- Joomla version -- : 3.5
-- PHP version -- : 5.6.19

I have used Hikashop for many years on another site and it works great.

I now have it installed on a Choir site and last year sold tickets to our concerts on line with just hikashop and the customer used the email as a ticket at the event. I want to make it a little more professional and just installed hikaserial.

My problem right now is when I try to test the checkout system - it says "the email is already in use". I had this problem on my other site and corrected it by using "no login" - I have attached a screenshot of the new setup. This problem seems to be new - last year before hikserial was installed I could purchase tickets using 'an email that is from a registered person". Now I cannot.

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Next question - I used a different, unused email address and did a test and it went through just fine, with the nice Serial Data on it. How can I make my eticket something like the one below. This was used at a local zoo last winter.

Thank you - I followed the instructions to make the sample "Template Ticket" and a screenshot of setup is below. Also the results of an order - I do not see the "ticket.png" fill attached.