I do not know when exactly and what exactly is the problem. I had problems with a dedicated server, but now the problem, I think, is not only that.
I decided to delete all the libraries and files of the game in order to download them again. But when I downloaded the game again and tried to create a world by enabling the "start server" option, I saw an Internet error message. I reinstalled the game several times, but the problem persisted.
I decided to delete all the libraries and files of the game in order to download them again. But when I downloaded the game again and tried to create a world by enabling the "start server" option, I saw an Internet error message. I reinstalled the game several times, but the problem persisted.