IsKinematic player completely frozen

I have a rigidbody character with the animator component, capsule collider, rigidbody, and my movment script. My problem is is when I press the play button my player first doesn't fall, and when I press forward, the player plays the running animation, but doesn't move.

Here is my movement script:

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class Mover : MonoBehaviour
 {
     public GameObject Player;
     public Rigidbody rb;
 
     public GameObject Center;
     public GameObject Facing;
 
     public float JumpForce = 7.5f;
     public float RunSpeed = 2f;
 
     private bool canJump = true;
 
     void jump()
     {
         if(canJump == true)
         {
 
             Player.GetComponent<Animator>().Play("Jumping");
             rb.AddForce(0f, JumpForce, 0f, ForceMode.Impulse);
 
             canJump = false;
             
             //reset isJumping after 1.5 sec
             Invoke("changeCanJump", 1.5f);
         }
     }
 
     void changeCanJump()
     {
         canJump = true;
     }
 
 
 
     void OnCollisionEnter(Collision collisionInfo)
     {
         if(collisionInfo.collider.tag == "Enemy")
         {
             Player.GetComponent<Animator>().Play("KnockBack");
         }
     }
 
 
     void Update()
     {
         if (Input.GetKey(KeyCode.D))
         {
             if (Facing.transform.position.z > Center.transform.position.z)
             {
                 Player.transform.Rotate(0, 180, 0);
             }
 
             rb.AddForce(0, 0, -RunSpeed, ForceMode.Force);
             Player.GetComponent<Animator>().Play("WalkCycle1");
             
         } else if (Input.GetKey(KeyCode.Space) || Input.GetKey(KeyCode.W))
         {
             //rb.AddForce(0, JumpForce * Time.deltaTime, 0, ForceMode.Impulse);
             //Player.GetComponent<Animator>().Play("Jumping");
             
             jump();
 
 
 
         } else if (Input.GetKey(KeyCode.A))
         {
             
             if (Facing.transform.position.z < Center.transform.position.z)                           // -Z is forward, Z is backward
             {
                 Player.transform.Rotate(0, 180, 0);
                 
             }
 
             //Find the position of the facing gameobject and see what side it is relative to the middle point.
             rb.AddForce(0, 0, RunSpeed, ForceMode.Force);
             Player.GetComponent<Animator>().Play("WalkCycle1");
             
             
         } else 
         {
             Player.GetComponent<Animator>().Rebind ();
         }
     }
 }