Starting the client

[GM-Pandora]

The error message says novice because the client has not started yet, so you're not logged in, so the variable for the class is 0, which happens to be novice.

Don't worry we'll help you figure it out.

Try unstalling everything and re-install the full hero, let it run the hero patcher, don't run sakray, the full installer is up to date enough for now, just run RO directly.

If it still doesn't work, run setup.exe, take a SS of that. Try disabling sounds sometimes it helps, also update the drivers of your graphic card (unless you're sure they're up to date).

I'm not sure if it could have to do with your windows being in japanese, but I don't think so, have you had any trouble on other servers?