[VPS Linux] hey guys i can only start one client and i am VIP osbot user

[DerWahreTom]

root@h2886286:~# java -jar /root/Desktop/osbot.jar
Exception in thread "main" java.lang.NoClassDefFoundError: Could not initialize class sun.awt.X11.XToolkit
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Class.java:264)
        at java.awt.Toolkit$2.run(Toolkit.java:860)
        at java.awt.Toolkit$2.run(Toolkit.java:855)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.awt.Toolkit.getDefaultToolkit(Toolkit.java:854)
        at javax.swing.RepaintManager.<clinit>(RepaintManager.java:238)
        at javax.swing.JComponent.repaint(JComponent.java:4792)
        at java.awt.Component.repaint(Component.java:3311)
        at javax.swing.AbstractButton.setModel(AbstractButton.java:1784)
        at javax.swing.JButton.<init>(JButton.java:134)
        at javax.swing.JButton.<init>(JButton.java:91)
        at org.osbot.IA.<clinit>(lz:157)
        at org.osbot.Boot.main(tr:212)
and how i can give osbot more ram