Why is my Jumping script not working with my Movement script?

Hi there,
I have 2 scripts, one with movement (vertically and horizontally). And I have one script seperatelly made so the character jumps. But when i have both of them on at the same time, only the jumping script works and when i turn the jumping script of the movement script works.

Movement script:

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

public class Moving : MonoBehaviour {

    public float speed;

    private Rigidbody rb;

    void Start()
    {
        rb = GetComponent<Rigidbody>();
    }

    void FixedUpdate()
    {
        float moveHorizontal = Input.GetAxis("Horizontal");
        float moveVertical = Input.GetAxis("Vertical");

        Vector3 movement = new Vector3(moveHorizontal, 0.0f, moveVertical);

        rb.AddForce(movement * speed);
    }
}

Jump script:

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

public class CharacterJump : MonoBehaviour {

    public CharacterController controller;

    private float verticalVelocity;
    private float gravity = 14.0f;
    private float jumpForce = 10.0f;

    // Use this for initialization
    void Start () {
        controller = GetComponent<CharacterController>();
	}
	
	// Update is called once per frame
	void Update ()
    {
        if (controller.isGrounded)
        {
            verticalVelocity = -gravity * Time.deltaTime;
            if (Input.GetKeyDown(KeyCode.Space))
            {
                verticalVelocity = jumpForce;
            }
        }
        else
        {
            verticalVelocity -= gravity * Time.deltaTime;
        }

        Vector3 moveVector = new Vector3(0, verticalVelocity, 0);
        controller.Move(moveVector * Time.deltaTime);
    }
}

How can i fix this annoying problem?

Thanks in advance <3

Copy your jump script into your movement script as shown below. Not sure why you separated it. Below is the ugly version, but you get my point.

    using System.Collections;
     using System.Collections.Generic;
     using UnityEngine;
     
    
         public class CharacterJump : MonoBehaviour {
         
             public CharacterController controller;
         
             private float verticalVelocity;
             private float gravity = 14.0f;
             private float jumpForce = 10.0f;
              public float speed;
private Rigidbody rb;

             // Use this for initialization
             void Start () {
                 controller = GetComponent<CharacterController>();
         rb = GetComponent<Rigidbody>();

             }
             
             // Update is called once per frame
             void Update ()
             {
                 if (controller.isGrounded)
                 {
         float moveHorizontal = Input.GetAxis("Horizontal");
         float moveVertical = Input.GetAxis("Vertical");
if(moveVertical > 0.1f)
{
         Vector3 movement = new Vector3(moveHorizontal, 0.0f, moveVertical); 
         rb.AddForce(movement * speed);
}
if(moveHorizontal > 0.1f)
{
         Vector3 movement = new Vector3(moveHorizontal, 0.0f, moveVertical); 
         rb.AddForce(movement * speed);
}

                     verticalVelocity = -gravity * Time.deltaTime;
                     if (Input.GetKeyDown(KeyCode.Space))
                     {
                         verticalVelocity = jumpForce;
                     }
                 }
                 else
                 {
                     verticalVelocity -= gravity * Time.deltaTime;
                 }
         
                 Vector3 moveVector = new Vector3(0, verticalVelocity, 0);
                 controller.Move(moveVector * Time.deltaTime);
             }
         }