call back на мобильной версии

Ребят, кто может сказать почему модальное окно не открывается на мобильнике?

`const modal = document.getElementById("myModal");
const newModal = document.getElementById("newModal");
const btn = document.getElementById("btn");
const nope = document.getElementById("nope");
const closeMe = document.getElementById("closeMe");
const yep = document.getElementById("yes");
const close = document.getElementsByClassName("close")[0];
btn.onclick = function() {
  modal.style.display = "block";
};
nope.onclick = function() {
  modal.style.display = "none";
};
closeMe.onclick = function() {
  newModal.style.display = "none";
};
yep.onclick = function() {
  modal.style.display = "none";
  newModal.style.display = "block";
  countdownStart(26, "status");
};
close.onclick = function() {
  modal.style.display = "none";
  newModal.style.display = "none";
};
window.onclick = function(e) {
  if (e.target == modal || e.target == newModal) {
    modal.style.display = "none";
    newModal.style.display = "none";
  }
};
function countdownStart(secs, elem) {
  var element = document.getElementById(elem);
  element.innerHTML = "Please wait for " + secs + " seconds";
  if (secs < 1) {
    clearTimeout(timer);
    element.innerHTML =
      "Most likely we are already in the process of conversation :)";
  }
  secs--;
  var timer = setTimeout("countdownStart(" + secs + ', "' + elem + '")', 1000);
}
/*-------------------------
Phone validation---*/

Вот ссылка на https://codepen.io/AlexBlack88/pen/bovLPo