As others have said, this is not a problem--just a slight inconvenience.

As antlass has suggested, you can call Ryanair.

You can also pull up your reservation on the Ryanair website, provided you know the e-mail address used during the reservation, the date of travel, and the departure and arrival airport.

Go here: https://www.bookryanair.com/SkySales...EN-GB&lc=EN-GB
Pick Option 3.
Enter the information.
Select "View My Booking"
Click on "Select and Continue