Please I need helpe fix this codes:

function checkForm() {

const name = document.getElementById("fullName");

const email = document.getElementById("email");

const password = document.getElementById("password");

const passwordConfirm = document.getElementById("passwordConfirm");

const error = document.getElementById("formErrors");

let errorsFound = false;

if (!name.value) {

errorsFound = true;

name.style = "border: 2px solid red";

error.style = "display: block";

const nameErr = document.createElement("li");

nameErr.textContent = "Missing full name.";

error.appendChild(nameErr);

}

if (

!email.value ||

!/^[a-zA-Z0-9._-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,5}$/.test(email.value)

) {

errorsFound = true;

email.style = "border: 2px solid red";

error.style = "display: block";

const emailErr = document.createElement("li");

emailErr.textContent = "Invalid or missing email address.";

error.appendChild(emailErr);

}

if (password.value.length < 10 || password.value.length > 20) {

errorsFound = true;

password.style = "border: 2px solid red";

error.style = "display: block";

const passErr1 = document.createElement("li");

passErr1.textContent = "Password must be between 10 and 20 characters.";

error.appendChild(passErr1);

}

if (!password.value || !/[a-z]/.test(password.value)) {

errorsFound = true;

password.style = "border: 2px solid red";

error.style = "display: block";

const passErr2 = document.createElement("li");

passErr2.textContent =

"Password must contain at least one lowercase character.";

error.appendChild(passErr2);

}

if (!password.value || !/[A-Z]/.test(password.value)) {

errorsFound = true;

password.style = "border: 2px solid red";

error.style = "display: block";

const passErr3 = document.createElement("li");

passErr3.textContent =

"Password must contain at least one uppercase character.";

error.appendChild(passErr3);

}

if (!password.value || !/[0-9]/.test(password.value)) {

errorsFound = true;

password.style = "border: 2px solid red";

error.style = "display: block";

const passErr4 = document.createElement("li");

passErr4.textContent = "Password must contain at least one digit.";

error.appendChild(passErr4);

}

if (passwordConfirm && password.value !== passwordConfirm.value) {

errorsFound = true;

password.style = "border: 2px solid red";

passwordConfirm.style = "border: 2px solid red";

error.style = "display: block";

const passErr5 = document.createElement("li");

passErr5.textContent = "Password and confirmation password don't match.";

error.appendChild(passErr5);

}

if (errorsFound === false) {

error.style = "display: none";

name.style = "border: 1px solid #aaa";

email.style = "border: 1px solid #aaa";

password.style = "border: 1px solid #aaa";

passwordConfirm.style = "border: 1px solid #aaa";

}

}

document.getElementById("submit").addEventListener("click", function (event) {

checkForm();

// Prevent default form action. DO NOT REMOVE THIS LINE

event.preventDefault();

});