[Whippet]

I got the following message in the DS message window:

 ERROR Unhandled exception: edu.wpi.first.wpilibj.tables.TableKeyNotDefinedException: Unkown Table Key: /SmartDashboard/Forward Time at [edu.wpi.first.wpilibj.networktables2.NetworkTableNode.getDouble(NetworkTableNode.java:51), edu.wpi.first.wpilibj.networktables.NetworkTable.getNumber(NetworkTable.java:294), edu.wpi.first.wpilibj.smartdashboard.SmartDashboard.getNumber(SmartDashboard.java:144), org.usfirst.frc.team4301.robot.Robot.disabled(Robot.java:90), edu.wpi.first.wpilibj.SampleRobot.startCompetition(SampleRobot.java:126), edu.wpi.first.wpilibj.RobotBase.main(RobotBase.java:234)]

Here is our code:

/* 
 * This is the experimental code for the 2015 robot.  DO NOT USE FOR COMPETITION!  
 * All code that is usable will be in  a separate project.
 */
package org.usfirst.frc.team4301.robot;


import edu.wpi.first.wpilibj.SampleRobot;
import edu.wpi.first.wpilibj.RobotDrive;
import edu.wpi.first.wpilibj.Joystick;
import edu.wpi.first.wpilibj.Timer;
import edu.wpi.first.wpilibj.Gyro;
import edu.wpi.first.wpilibj.Talon;
import edu.wpi.first.wpilibj.smartdashboard.SmartDashboard;


public class Robot extends SampleRobot {
    RobotDrive chassis;
    Joystick DriverStick;
    Joystick OperatorStick;
    Gyro gyro;
    Talon Lift;
    Talon Winch;

    public Robot() {
        chassis = new RobotDrive(0, 1, 2, 3);
        chassis.setExpiration(0.1);
        DriverStick = new Joystick(0);
        OperatorStick = new Joystick(1);
        gyro = new Gyro(0);
        Lift = new Talon(4);
        Winch = new Talon(5);
    }

    /**
     * Drive left & right motors for 2 seconds then stop
     */
    public void autonomous() {
        chassis.setSafetyEnabled(false);
        gyro.reset();
        while (isAutonomous() && isEnabled()) {
        	double ForwardTime = SmartDashboard.getNumber("Forward Time", 1.00);
        	double SidewaysTime = SmartDashboard.getNumber("Sideways Time", 5.00);
        	double rotation = 2.00;
        	if(Timer.getMatchTime() < ForwardTime) {
        		chassis.mecanumDrive_Cartesian(0, 0.5, rotation, gyro.getAngle());  //Drive away from driver Station
        	}
        	if(Timer.getMatchTime() < SidewaysTime + ForwardTime && Timer.getMatchTime() > ForwardTime) {
        		chassis.mecanumDrive_Cartesian(1, 0, rotation, gyro.getAngle());
        	}
        	// Check if time is less than sideways time and greater than forward time.
        	else {
        		chassis.mecanumDrive_Cartesian(0.0, 0.0, 0.0, gyro.getAngle());
        	}
        	SmartDashboard.putNumber("Timer", Timer.getMatchTime());
            SmartDashboard.putNumber("Gyro", gyro.getAngle());
        	Timer.delay(0.005); //wait for a short time so the processor doesn't get mad.
        }
        
    }

    public void operatorControl() {
        chassis.setSafetyEnabled(true);
        while (isOperatorControl() && isEnabled()) {
        	//set x, y, and z values by squaring and multiplying by speed limiter
        	double x = DriverStick.getX() * Math.abs(DriverStick.getX()) * DriverStick.getThrottle();
        	double y = DriverStick.getY() * Math.abs(DriverStick.getY()) * DriverStick.getThrottle();
        	double z = DriverStick.getZ() * Math.abs(DriverStick.getZ()) * DriverStick.getThrottle();
            chassis.mecanumDrive_Cartesian(x, y, z, gyro.getAngle());
            if(DriverStick.getTrigger() == true) {
            	gyro.reset();
            }
            Lift.set(OperatorStick.getY());
            SmartDashboard.putNumber("Timer", Timer.getMatchTime());
            SmartDashboard.putNumber("Gyro", gyro.getAngle());
            Timer.delay(0.005);		// wait for a motor update time
        }
    }

    /**
     * Runs during test mode
     */
    public void test() {
    	
    }
    public void disabled() {
    	while(isDisabled()) {
    		gyro.reset();
    		chassis.mecanumDrive_Cartesian(0.0, 0.0, 0.0, 0.0);
    		SmartDashboard.getNumber("Forward Time");
    		SmartDashboard.getNumber("Sideways Time");
    		SmartDashboard.putNumber("Gyro", gyro.getAngle());
    		Timer.delay(0.005);
    		
    	}
    }
}

What are we doing wrong?