Can't Move My Character on X Axis, only Y and Z

Making This Third Person Adventure Game , I used to be able to move the character left and right , now i can’t, now character only moves it forwards and backwards.

`using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class PlayerController : MonoBehaviour
{
public float moveSpeed;
public Rigidbody theRB;
public float jumpForce;

// Start is called before the first frame update
void Start()
{
    theRB = GetComponent<Rigidbody>();
}

// Update is called once per frame
void Update()
{
    theRB.velocity = new Vector3(Input.GetAxis("Horizontal") * moveSpeed, theRB.velocity.y, Input.GetAxis("Vertical") * moveSpeed);

    {
        if (Input.GetButtonDown("Jump"))
            theRB.velocity = new Vector3(theRB.velocity.x, jumpForce, theRB.velocity.z);
    }
}

}`

You show this:

using System.Collections; 
using System.Collections.Generic; 
using UnityEngine; 
public class PlayerController : MonoBehaviour 
{ 
	public float moveSpeed; 
	public Rigidbody theRB; 
	public float jumpForce; 
	// Start is called before the first frame update 
	void Start() { theRB = GetComponent<Rigidbody>(); } 
	// Update is called once per frame 
	void Update() 
	{ 
		theRB.velocity = new Vector3(Input.GetAxis("Horizontal") * moveSpeed, theRB.velocity.y, Input.GetAxis("Vertical") * moveSpeed); 
		{ 
		if (Input.GetButtonDown("Jump")) 
		theRB.velocity = new Vector3(theRB.velocity.x, jumpForce, theRB.velocity.z); 
		} 
	} 
}

You’ll notice your curly bracket above Input.GetButtonDown , shouldn’t be there, it should be after input

         theRB.velocity = new Vector3(Input.GetAxis("Horizontal") * moveSpeed, theRB.velocity.y, Input.GetAxis("Vertical") * moveSpeed); 
         
         if (Input.GetButtonDown("Jump")) 
         {
              theRB.velocity = new Vector3(theRB.velocity.x, jumpForce, theRB.velocity.z); 
         }

sorry for late reply, im a little confused to where the put the values, can you type in my whole code with your values in them ? that would be great, thanks!