I have a little problem with official MuOnline game from webzen.
I want to install it but I get this error everytime I'm trying.
If someone play that game, can upload the game files into an archive [updated to last version if is possible] and upload it somewhere like mega.co.nz ?
i download their 'Downloader' and then it downloads and then installs without issues for me, also updates after u launch main(launcher) and can connect.
otherwise just contact or check the official forum