I used the Commuter train of the railway company S...

I used the Commuter train of the railway company SL to travel to the old city of Stockholm, but there were no station staff at the station, the ticket was a vending machine, and the display of the ticket was in Swedish, so it was quite difficult. And if you get on the train without the right ticket, you will be charged a large fine. (It is clearly written in English that you will not sell tickets in the car.) I thought it was a very unfriendly company for travelers.