Seat reservation is not working on my website

Hello! I need help with my seat reservation process. After the introduction to a subscription for MyTicket cloud service, I've been having issues with the Participant Data process.After I finish the payment process, the plugin takes me to an empty-cart page instead of the thankyou page. I've attached a video so you can see the update, it's worth to mention that everything was working fine. The settings I have on MyTicket plugin are:Participant PDF Ticket (Status Completed)Participant dataWhen I remove the participant data option, it works.