Unity 5 - Can't move/control object

Hello,

If I open a project from Unity 4.6 in Unity 5 I can’t control my object anymore. I also created new project in Unity 5, set a scene with some ground and object (cube) that I want to move with my keyboard keys. I attach script to object and start the scene but object is not moving. Same thing is working in Unity 4.6.

Script is very simple:

using UnityEngine;
using System.Collections;
        
        public class Move : MonoBehaviour {
        
        	public int speed = 0;
        	private Vector3 input;
     
        	void FixedUpdate(){
        		Vector3 input = new Vector3(Input.GetAxis ("Horizontal"), 0, Input.GetAxis("Vertical"));
        		GetComponent<Rigidbody>().AddForce(input * speed * Time.deltaTime);
        	}
        }

I’m not using any kind of animations in my project.

EDIT

I opened my Unity 4.6 and project that I’m working on (project was not opened with Unity 5), and now even there I can’t move my object. Maybe some conflict betwen Unity 4.6 and Unity 5?

EDIT2

I unistalled Unity 5 and now I can’t make object to move even in Unity 4.6. Like it is glued to ground, I can see some force added to object (it shakes a little on top).

SOLVED
For some reason my timescale was set to 0 (not in code), after setting it to 1 in Start function everything is ok.