Click the "Create Score Sheet" button to make a CSV (spreadsheet) file of the results. This will be saved in your default folder, probably "Downloads".
Your score sheet has been saved.
Now all you have to do is send the scoresheet to the email address given to you by the trial organiser.
If you are using an iPhone or iPad, click the "Send Score Sheet" button. Then just tap the share icon , select "Mail", insert the email address and send. Make sure you have an internet connection when you send.
If you are using Android, start by going to your email app and prepare to send. Add the organiser's email address and then find the file section_X.csv in your default folder (which is probably "Downloads") and add it as an attachment. Then make sure you have an internet connection, and send the email.