<br />
<b>Warning</b>:  session_start(): open(/var/lib/php/sessions/sess_972243rpij068b5r5m35o2k6mo, O_RDWR) failed: No space left on device (28) in <b>/var/www/tb-usercake/models/config.php</b> on line <b>51</b><br />
<br />
<b>Warning</b>:  session_start(): Failed to read session data: files (path: /var/lib/php/sessions) in <b>/var/www/tb-usercake/models/config.php</b> on line <b>51</b><br />
!7

lib ...

import processing.core.PApplet;

p {
  PApplet.main("main$Visualization");
}

public sclass Visualization extends PApplet {
  @Override
  public void settings() {
      size(640, 480);
  }

  @Override
  public void setup() {
      fill(120,50,240);
  }

  @Override
  public void draw(){
      ellipse(width/2,height/2,second(),second());
  }
}