I am using Bootstrap's JS (https://stackpath.bootstrapcdn.com/bootstrap/5.0.0-alpha2/js/bootstrap.bundle.min.js) and I have this modal, which pops up both on adding new things and editing those things. When I click add button (basically submit) I am expecting modal to close fully, but what happens when I include this JS version is that modal disappear, but after that everything becomes unclickable on web-page.

After a bit of digging I've found out that the problem occurs when I use Bootstrap's JS and when I exclude that script it just works fine. This CDN - Also linked at the start of this Question

Here's my code:

const addForm = document.getElementById("add-user-form");
const updateForm = document.getElementById("edit-user-form");
const showAlert = document.getElementById("showAlert");
const addModal = new bootstrap.Modal(document.getElementById("addNewUserModal"));
const editModal = new bootstrap.Modal(document.getElementById("editUserModal"));
const tbody = document.querySelector("tbody");

// Add New User Ajax Request
addForm.addEventListener("submit", async (e) => {
  e.preventDefault();

  const formData = new FormData(addForm);
  formData.append("add", 1);

  if (addForm.checkValidity() === false) {
    e.preventDefault();
    e.stopPropagation();
    addForm.classList.add("was-validated");
    return false;
  } else {
    document.getElementById("add-user-btn").value = "Molimo sačekajte...";

    const data = await fetch("action.php", {
      method: "POST",
      body: formData,
    });
    const response = await data.text();
    showAlert.innerHTML = response;
    document.getElementById("add-user-btn").value = "Dodajte vozilo";
    addForm.reset();
    addForm.classList.remove("was-validated");
    addModal.hide();
    fetchAllUsers();
  }
});