Login is showing error=emptyinput even though login details are successful. Can anyone help?

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PHP

MySQL

HTML5

Hello
I am doing a project in PHP and recently facing a problem. I made a login and signup page using PHP, Mysqli. Sign up is working just fine. However, when logging in it is showing error=emptyinput even though I double checked and tried logging in using the recent data I stored 5s sooner. Can anyone help me with a solution?

Here's my code:

//login.php

<pre><!-- Login Box Start -->
<div class="popUpLogin">
    <div class="blackBox activate"></div>
    <div class="wrapper activate">
        <div class="title">
            Login Form
            <button onclick=" enableActivate() ">×</button>
        </div>
        <form action="includes/login.inc.php" method="post">
            <div class="field">
                <input type="text" name="name" required>
                <label>Email Address</label>
            </div>
            <div class="field">
                <input type="password" name="pwd" required>
                <label>Password</label>
            </div>
            <div class="content">
                <div class="checkbox">
                    <input type="checkbox" id="remember-me">
                    <label for="remember-me">Remember me</label>
                </div>
                <div class="pass-link">
                    <a href="#">Forgot password?</a>
                </div>
            </div>
            <div class="field">
                <input type="submit" name="submit" value="Login">
            </div>
            <div class="signup-link">
                Not a member? <a href="signup.php">Signup now</a>
            </div>
        </form>
    </div>
    <?php
    if(isset($_GET["error"])){
        if($_GET["error"] == "emptyinput"){
            echo "<p>Fill in all feilds!</p>";

        } else if($_GET["error"] == "wronglogin") {
            echo "<p>Incorrent Login Information</p>";
        } 
    }
    ?>
</div>

<!-- Login Box END -->

//login.inc.php

 <pre>
<?php

if(isset($_POST["submit"])){
    $username = $_POST["uid"];
    $pwd = $_POST["pwd"];

    require_once 'dbh.inc.php';
    require_once 'functions.inc.php';

    if(emptyInputLogin($username, $pwd) !== false){
        header("location: ../logintest.php?error=emptyinput");
        exit();
    }

    loginuser($conn, $username, $pwd);
    } else {
        header("location: ../logintest.php");
    exit();
}

//functions.inc.php

 function emptyInputLogin($username, $pwd){
    $result;
    if(empty($username) || empty($pwd)){
        $result = true;
    } else {
        $result = false; 
    }
    return $result;
}

function loginuser($conn, $username, $pwd) {
    $uidExists = uidExists($conn, $username, $username);

    if($uidExists === false){
        header("location: ../logintest.php?error=wronglogin");
        exit();
    }

    $pwdHashed = $uidExists["usersPwd"];
    $checkPwd = password_verify($pwd, $pwdHashed);

    if ($checkPwd === false){
        header("location: ../logintest.php?error=wronglogin");
        exit();
    } else if ($checkPwd === true){
        session_start();
        $_SESSION["userid"] = $uidExists["usersID"];
        $_SESSION["useruid"] = $uidExists["usersUid"];
        header("location: ../index.php");
        exit();
    }
}

What I have tried:

I have tried logging in with recent username and password and searched google but I could not figure it out.