i thought the same thing but this is what i did to check
took all the files in the client, db, and server and uninstalled, removed and deleted them
took the original server, client and db files that hasnt been edited in anyway other then ip, account name, and db pass was changed like before when i first installed them
and still get the same error and these files worked before just like they are because they was the starting files i used to edit with but now with no changes they dont work because they giving me the same error as to the server, db, and client files i did edit which is giving me the impression that its not the files that its something with my computer
found the issue it was the game.exe file that was bad made a new one and changed the ip and it fixed the problem but thanks for the help
by the way please if anyone has any issue and they find the fixes please share dont leave to post blank this way others can learn how to fix it i seen alot of post like this trying to find my problem and fixes