Hey there!
It looks like this thread is a duplicate of another one you posted as king the same question here:
QR and Ticket number in email
I’m going to go ahead and close this thread and we will be sure to reply to your other thread as soon as we can, in the order that we received it.
In the meantime, I would suggest checking to see if the missing ticket number and QR code are related to testing on a local WordPress installation and test again on a server in a development environment. If you could try that as well as the steps outline in this guide and update your other thread with the results, that will help us when we get to your thread. 🙂
Thanks so much!
Geoff