In this step I suggest to find Your own orginal copy of game. If You don't have one, well... we can try getting files from here. Master & Critter
After installation remember to update Your client with updater tool. It can take a while go make yourself a tea.
Last step is to configure game. We need to show directories of critter and master files.
Also check if you have right game server ip and port. It should look like this.
Now You are ready to play. One important thing is that FOnline is not completed yet. It's in early Beta and it still changes. Anyway it is really playable and can be really enjoying.
Welcome to FOnline, one of the hardest moorpg You could ever play.