Add Coin Score to Time Score

Hello, guys. Everytime my player collides with a coin it adds 50 points, and every second it adds 100 points. But ingame I can see the time score being added, and when I catch a coin I see the 50 there, but the 50 is not added to the time score, it's like the same text has 2 scores. Here are my scripts:

My scoreManager:

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using UnityEngine.UI;
 
 public class ScoreManager : MonoBehaviour {
 
     public Text puntuacionGameplayText, puntuacionFinalText; 
 
     private int scorePerTick = 100;
 
     private int scoreCoin = 50;
 
     private float nextTimeToScore;
 
     private int totalScore = 0;
     private bool juegoAcabado = false;
     // Use this for initialization
     void Start () {
         //Empezamos teniendo el cuenta en tiempo para que el score no empiece ya en 100
         nextTimeToScore = Time.timeSinceLevelLoad + 1;
 
     }
     
     // Update is called once per frame
     void Update () {
 
         if (!juegoAcabado)
         {
             if (Time.timeSinceLevelLoad >= nextTimeToScore)
             {
                 AumentarScore();
                 nextTimeToScore = Time.timeSinceLevelLoad + 1;
             }
         }
     }
 
     public void AcabarJuego()
     {
         juegoAcabado = true;
 
         int maximaPuntuacion = PlayerPrefs.GetInt("Puntuacion", 0);
         int puntuacionTotal = GetTotalScore();
         string puntuacionString = "Tu puntuación ha sido de \n " + puntuacionTotal;
      
 
 
         if (maximaPuntuacion < puntuacionTotal)
         {
             puntuacionString += "\n ¡Nueva puntuación maxima alcanzada!";
             PlayerPrefs.SetInt("Puntuacion", puntuacionTotal);
             PlayerPrefs.Save();
         }
 
         puntuacionFinalText.text = puntuacionString;
     }
 
 
     void AumentarScore()
     {
         totalScore += scorePerTick;
         puntuacionGameplayText.text = totalScore.ToString();
     }
 
     public int GetTotalScore()
     {
         return totalScore;
     }
 }

My coin score is within the character script:

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using UnityEngine.UI;
 
 public class Personaje : MonoBehaviour {
 
     public float aceleracion = 0.0015f;
     public float speed = 5;
     public float leftRightSpeed = 5;
     public int segundosInmune = 3;
     public int vidaMaxima;
     public GameObject hitFX;
     public AudioSource hitSound;
 
     public Text puntuacionGameplayText, puntuacionFinalText;
     private int scoreCoin = 50;
     private int totalScore;
 
     private int vidaActual;
     private Rigidbody rigidBody;
     private Animator animator;
 
     private bool isInmune = false;
 
     private float nextTimeKickInmune = 0;
 
     private float speedMultiply = 0;
 
     public Text lives;
 
     public float jumpForce = 10;
     public bool isGround = true;
     
     // Use this for initialization
     void Start()
     {
         rigidBody = GetComponent<Rigidbody>();
         animator = GetComponentInChildren<Animator>();
         
         rigidBody.freezeRotation = true;
 
         vidaActual =  vidaMaxima;
 
         lives.text = "Lives = " +  vidaActual;
 
     }
 
     // Update is called once per frame
     void Update()
     {
         //Vamos a ir incrementando la velocidad a la que tiene que ir en intervalos regulares hasta alcanzar la velocidad que le corresponde
         speedMultiply += aceleracion;
         if (speedMultiply > 1) speedMultiply = 1;
 
         float realSpeed = speedMultiply * speed;
         float realLeftRightSpeed = speedMultiply * leftRightSpeed;
 
 
         Vector3 movimiento = Vector3.forward * realSpeed * Time.deltaTime;
 
         if (Input.GetKey("left"))
         {
             movimiento += Vector3.left * realLeftRightSpeed * Time.deltaTime;
         }
 
         if (Input.GetKey("right"))
         {
             movimiento += Vector3.right * realLeftRightSpeed * Time.deltaTime;
         }
 
         if (Input.GetKeyDown("space") && isGround)
         {
             GetComponent<Rigidbody>().velocity = new Vector3(rigidBody.velocity.x, jumpForce);
             animator.SetTrigger("Jump");
             isGround = false;
         }
 
         transform.position += movimiento;
 
         if (isInmune)
         {
             if (Time.timeSinceLevelLoad >= nextTimeKickInmune)
             {
                 AcabarInmunidad();
             }
         }
 
         lives.text = "Lives = " + vidaActual;
 
     }
 
     private void OnCollisionEnter(Collision collision)
     {
         if (collision.gameObject.tag == "Floor")
         {
             isGround = true;
         }
     }
 
     public void DetenerPersonaje()
     {
         speed = 0;
         leftRightSpeed = 0;
         animator.SetTrigger("Detener");
     }
 
     void CoinScore()
     {
         totalScore += scoreCoin;
         puntuacionGameplayText.text = totalScore.ToString();
     }
     
     public void RestarVida()
     {
         if (!isInmune)
         {
             hitFX.SetActive(true);
             hitSound.pitch = Random.Range(0.8f, 1.2f);
             hitSound.Play();
             vidaActual--;
             Debug.Log("Vida actual " + vidaActual);
         }
     }
 
     public bool EstaMuerto()
     {
         if (vidaActual <= 0) return true;
         else return false;
     }
 
     public void AcabarInmunidad()
     {
         //rigidBody.isKinematic = false;
         isInmune = false;
     }
     public void EmpezarInmunidad()
     {
         if (!isInmune)
         {
             //rigidBody.isKinematic = true;
             isInmune = true;
             nextTimeKickInmune = Time.timeSinceLevelLoad + segundosInmune;
         }
     }
 
     public void BloqueGolpeado()
     {
         RestarVida();
         EmpezarInmunidad();
     }
 
     public void OnTriggerEnter(Collider other)
     {
         if(other.tag == "Enemy")
         {
             BloqueGolpeado();
         }
 
         if (other.gameObject.tag == "Coin")
         {
             CoinScore();
         }
     }
 }
 

And here is a video of that situation:

link text

Thanks in advance for any help!