Tree of Savior Forum

Why can't i connect to the Korean server?

Ive got an account for Korean CBT3 and i have been playing for quite some time.
But starting from yesterday, “cannot connect to the server” keep popping out when i try to update the game. it also said something like “updater/patcher.version.txt(919)”… There’s nothing wrong when my friend tried to log in with my account or i tried to log in on the website…And i tried VPN but failed…
What is wrong…?! Am i the ONLY ONE like this?