maybe this is because the username is very long.
Can you try it with different usernames and see if that makes a difference?
I just tested it with short username and the problem is still the same.
As seen in the video, while starting up, the customer clicks on the part that says metin2 in the upper left corner and gives an error.
The only solution to this is to manually click on the username section as shown in the video.
Thus, it is not necessary to manually click on subsequent automatic entries.
When we open the Gameforge client for the first time, it is sufficient to configure it manually. It will then log in automatically.