There are a couple of ways your attendee can obtain a new ticket.
1. Retrieve it themselves from the events page. Read this article on how to retrieve lost ticket: Lost / Missing Ticket
2. Resend the ticket to attendee yourself.
Follow these steps to send a copy of the ticket to your attendee
1. Navigate to your event.
2. Click Tickets icon on the left side of the event. That will take you to your tickets section.
3. Click on Roster Info icon on the left.
4. Click on Active Registrations tab at the top.
At this point, you should see the list of all active attendees for your event. Scroll down or filter results to find the person you're looking for. When done, click on the User Info icon on the right side of this person's record.
The system will now display a screen with all pertinent details for this user. Click on Re-send Ticket button
You will be prompted to enter an email address to which this system should send the ticket and receipt.
NOTE: The system emails both the PDF ticket confirmation as well as a copy of the original receipt for the purchase