@Derex Actually, we solved the problem. The reason I'm posting this is because you get this error when you download MTA from its official website, and this only happens with GTO. The solution is to download the latest version for Windows 7/10 from the Nightly website, but not every player knows how to do this and can't connect to the server. I connected to my friend's computer via AnyDesk, and the problem was solved that way. Maybe many people are getting this problem.

Hello, people who have downloaded/reinstalled MTA are having a problem connecting to the GTO server. First, when you try to connect to the server, you receive an update message. Then, after confirming the update, it says there are no updates available. A friend downloaded MTA today and couldn't connect to the GTO server because of this problem. There are no issues when we tried to connecting to other servers, but we got this problem/bug when connecting to the GTO server. This problem only exists with GTO. I've added the update messages(error messages). I hope the problem will be solved