I'm trying to make my player "Dash" but seems like it got stuck in place. pls help. Code below

Code (CSharp):

1.  void Movement()    //For movementInput as Rigidbody
2.     {
3.         float MoveInputX = Input.GetAxisRaw("Horizontal");
4.         float MoveInputZ = Input.GetAxisRaw("Vertical");
5.  
6.         Vector3 MoveVelocity = new Vector3(MoveInputX, 0, MoveInputZ);
7.         MoveVelocity = MoveVelocity.normalized * moveSpeed * Time.deltaTime;
8.         rb.MovePosition(transform.position + MoveVelocity);
9.     }
10.  
11.     void Dashing()
12.     {
13.         if (Input.GetKeyDown(KeyCode.Space))
14.         {
15.             currentDashTime = 0.0f;
16.         }
17.  
18.         if (currentDashTime < maxDashTime)
19.         {
20.             moveDirection = new Vector3(0, 0, dashSpeed);
21.             currentDashTime += dashStopSpeed;
22.         }
23.  
24.         else
25.         {
26.             moveDirection = Vector3.zero;
27.         }
28.  
29.         rb.MovePosition(moveDirection * Time.deltaTime);
30.     }

 

What is dashstopspeed related to?
I think there must be a Time.deltatime somewhere with increasing currentDashTime