Please try to change your Mudfish node

I have changed mudfish nodes multiple times and im using it full vpn mode too, same error

https://i.imgur.com/xk1MOL3.png

Please try to use FastConnect mode

Can you read what I said please, I already told you I am using full VPN Mode, fastconnect and just normally, all do NOT work anymore.

Please confirm that How to check the basic functionality works fine in your environment. It's a first thing you should test.  I'm curious that Full VPN mode works properly on your environment. If it says it works but not possible to play the game with Full VPN mode, please try to use "KR Asia (S. Korea - SK Broadband)" node too whether it's same.