Hi mudfish, i recently just download and use it to play Bless Online Japan Version,
initially, it doesnt work,
then i googled , and i found this site
https://www.reddit.com/r/Bless/comments/8dall9/help_connecting_to_bless_jp_using_mudfish_vpn/?st=jgdhjrdw&sh=92c9166d
i hope when other people who has same trouble can find the solution by reading this statement that i quote which helps me to play bless on japan server
“Pmang doesn’t recognize some JP mudfish nodes as being from JP. If you don’t see your account info at the top of the website and can’t start the launcher, switch to a different JP node in mudfish until one works. I’ve been using JP Asia (Hokkaido - SakuraNet) for a month+ now”