Hi! I tried to buy a ticket from Budapest to Ljubljana, but It says "Seat reservations required, You need to buy a seat reservation to board". However, I cannot buy the ticket. How can I make the reservation? Attached the screenshot of the problem. Thank you!
![](https://uploads-eu-west-1.insided.com/eurail-en/attachment/3b5acf4a-71c8-4737-bad4-cd5984928057.png)