Download Java 32bit.
Uninstall the other versions you have.
Download and install the official RuneScape client.
Make sure the RS client is running whilst OSBot client is on.
He isn't saying he currently does run more than 2 accounts, he's asking will I be able to run more accounts on linux than I can on windows, I'm pretty sure if he knows you can run quite a few bots then he'll buy VIP.