Update:
We are now at the Character Select Screen, The Error is telling us that the server side json files are missing data. In this case, it's the starter items the character is given when creating new characters that are causing the error. The source tells us exactly what the json needs to have, but obviously this is all a manual process and is going to take time. The second thing is that between the date of the source we have and when the client's were released, they switched to encrypting the packets. The encryption part has just been bypassed in the client.
Although the server source tells us the fields it wants to parse there is some trial and error involved with the values ect.
Just thought we'd give everyone an update.
A website for Registration is under way also, sneak peak below