2D plaformer, Can bug me into wall

Hey. I have a problem where i have a 2D platformer, but when i try jump down and go into the side og my blocks/walls it got stuck in the air and aslong as i hold the key that points into the wall it wont fall just stay there.

Here's my movement Code

 using UnityEngine;
 using System.Collections;
 
 public class MovementController : MonoBehaviour 
 {
     public float maxSpeed = 10.0f;
     bool facingRight = true;
 
     Animator anim;
 
 
     // Use this for initialization
     void Start () 
     {
         anim = GetComponent<Animator>();
     }
     
     // Update is called once per frame
     void FixedUpdate () 
     {
         float move = Input.GetAxis("Horizontal");
         anim.SetFloat("Speed", Mathf.Abs (move));
         rigidbody2D.velocity = new Vector2(move * maxSpeed, rigidbody2D.velocity.y);
 
         if(move > 0 && !facingRight)
         {
             FlipFacing();
         }
         else if(move < 0 && facingRight)
         {
             FlipFacing();
         }
     }
 
     void FlipFacing()
     {
         facingRight = !facingRight;
         Vector3 charScale = transform.localScale;
         charScale.x *= -1;
         transform.localScale = charScale;
     }
 }
 

Can Anybody help here?

Thanks In advance;