由于 Javascript，无法登录托管网站

如何解决由于 Javascript，无法登录托管网站

我尝试将我的网站托管给提供商，但它似乎不想在那里登录。执行登录操作...我可以成功注册，更改密码，所以基本上我有数据库连接，但我无法登录网站...我应该修改什么？这是我的代码：
如果我在网站链接中输入例如https://example.com/login.php?enterID=123&password=123，我可以获得很好的响应，但它似乎不允许我登录网站.. 登录.php：

<?php
        include "mysql-connect.php";
        
        //get Info from login.html
        $ID = $_GET['enterID'];
        $PW = $_GET['password'];
        $stmt = $connect->prepare("SELECT PW,userType,nickName FROM users WHERE ID = ?");
        $stmt->bind_param("s",$ID);
        $valid = $stmt->execute();
        if (!$valid){
            die("Could not successfully run query.". $connect->connect_error);
        }
        $result = $stmt->get_result();
        if ($result->num_rows==0){
            //display message of no such student/teacher/admin
            echo "Failed to find an account with the input ID.";
        } else {
            $row = $result->fetch_assoc();
            if ($PW == $row['PW']) {
                $type = $row['userType'];
                $nick = $row['nickName'];
                //save data,record cookie for 6hours
                setcookie("type",$type,time() + 21600,'/');
                setcookie("userID",$ID,'/'); 
                setcookie("nickName",$nick,'/'); 
                //login success - Request.responseText to checklogin.js
                echo $type;

            } else {
                //display message of password error
                echo "The input password does not match the account password.";
            }
        }
        $connect->close();
?>

checklogin.js：

function login() {
    var enterID = document.getElementById("enterID").value;
    var password = document.getElementById("password").value;
    if ((password != "") && (enterID != "")) {
        var Request = new XMLHttpRequest();
        var info = "?enterID=" + enterID + "&password=" + password;
        Request.open("GET","php/login.php" + info,true);
        Request.send();
        Request.onload = function() {
            var respond = Request.responseText;
            if (respond == "admin") {
                window.location.href = "page/admin-system-management.php";
            } else if (respond == "student"){
                window.location.href = "page/student-dashboard.php";
            } else if (respond == "teacher"){
                window.location.href = "page/teacher-dashboard.php";
            } else{
                document.getElementById("errorMessage").innerText = respond;
            }
        }
    } else {
        document.getElementById("errorMessage").innerText = "Please fill in all the fields.";
    }
}

function redirect() {
    var Request = new XMLHttpRequest();
    Request.open("GET","php/redirect.php",true);
    Request.send();
    Request.onload = function() {
        var respond = Request.responseText;
        if (respond != "not logged.") {
            if (respond == "admin") {
                window.location.href = "page/admin-system-management.php";
            } else if (respond == "student"){
                window.location.href = "page/student-dashboard.php";
            } else if (respond == "teacher"){
                window.location.href = "page/teacher-dashboard.php";
            }
        }
    }
}

重定向.php：

<?php
    if (isset($_COOKIE["type"])){
        setcookie("type",$_COOKIE["type"],"/");
        setcookie("userID",$_COOKIE["userID"],"/");
        setcookie("nickName",$_COOKIE["nickName"],"/");
        echo $_COOKIE["type"];
    } else {
        echo "not logged.";
    }
?>

TImeoutAndRedirect 函数：

function TimeoutAndRedirect(Type) {
    var Request = new XMLHttpRequest();
    Request.open("GET","../php/redirect.php",true);
    Request.send();
    Request.onload = function() {
        var respond = Request.responseText;
        if (respond == "not logged.") {
            alert("Your login period has expired! Please login again!");
            window.location.href = "../login.html";
        } else if (respond != Type) {
            alert("You cannot access this page using your account!");
            if (respond == "admin") {
                window.location.href = "../page/admin-system-management.php";
            } else if (respond == "student"){
                window.location.href = "../page/student-dashboard.php";
            } else if (respond == "teacher"){
                window.location.href = "../page/teacher-dashboard.php";
            }
        }
    }
}