How to get back player control?

3d runner, player just stays and the environment moves towards him. The player should jump through the rings, kind of like a tiger in Madagascar 3. If he catches a boost, all the rings lining up, so he just goes through them real fast for a couple of seconds. You can't control the player and his velocity = 0 at this moment. But, after, when I say Invoke the function which brings the control back in 3 sec, It doesn't work and player keeps being uncontrollable.
Thanks in advance. Boost script: public class PillBoost : MonoBehaviour {

     public GameObject sparks;
     public GameObject ring01;
     bool isOnTrigger = false;
 
 
     public void OnTriggerEnter(Collider other){
         if (other.tag == "Player") {
             isOnTrigger = true;
             Instantiate (sparks,transform.position, Quaternion.identity);
             Destroy (this.gameObject);
 
             GameObject[] ringsArray = GameObject.FindGameObjectsWithTag("Ring");
             GameObject P = GameObject.FindWithTag("Player");
             for (int i=0;i<ringsArray.Length;i++){
                 Vector3 ringPos = ringsArray[i].transform.position;
                 Destroy(ringsArray[i]);
                 Instantiate(ring01,new Vector3(P.transform.position.x,P.transform.position.y-2,ringPos.z),Quaternion.identity);
             }
 
             GameObject.FindWithTag ("Player").GetComponent<PlayerController> ().canControl = false;
             GameObject.FindWithTag ("Player").GetComponent<PlayerController> ().gravity = Vector3.zero;
             GameObject[] rings01 = GameObject.FindGameObjectsWithTag ("Ring");
             for (int i=0; i<rings01.Length; i++) {
                 rings01 [i].GetComponent<MoveScript> ().moveSpeed = new Vector3 (0, 0, -100);
             }
         }
     }
 
     
     void Update () {
         if (isOnTrigger) {
             Invoke ("StartPlayerController",3);
         }
     }
 
     void StartPlayerController(){
         GameObject.FindWithTag ("Player").GetComponent<PlayerController> ().canControl = true;
         GameObject.FindWithTag ("Player").GetComponent<PlayerController> ().gravity = new Vector3 (-Input.acceleration.x * 80, 80, 0);
         }
 }