A non-numeric value encountered while submitting a login form laravel 5.5

Please i created a login form for my forum website but i got this error while trying to submit ** (View: /Applications/XAMPP/xamppfiles/htdocs/laravel-forum-master-3/resources/views/auth/login.blade.php)** and also if i didn't check the remember me botton it will give me a reply of invalid credentials

below is my code in login.blade.php

<form action="" method="post" id="login">
    
    @if(!empty(app('request')->input('redirectTo')))
    <input type="hidden" name="redirectTo" value="" />
    @endif
    <div class="panel">
        <div class="inner">
            <div class="content">
                <h2 class="login-title">Login</h2>
                <fieldset class="fields1">
                    <dl>
                        <dt><label for="email">Email address:</label></dt>
                        <dd>
                            <input type="text" name="email" id="email" size="25" value="" class="inputbox autowidth" />
                            @if ($errors->has('email'))
                            <br /><span class="error"></span>
                            @endif
                        </dd>
                    </dl>
                    <dl>
                        <dt><label for="password">Password:</label></dt>
                        <dd>
                            <input type="password" id="password" name="password" size="25" class="inputbox autowidth" autocomplete="off" />
                            @if ($errors->has('password'))
                            <br /><span class="error"></span>
                            @endif
                        </dd>
                        <dd><a href="">I forgot my password</a></dd>
                    </dl>
                    <dl>
                        <dd><label for="autologin"><input type="checkbox" name="remember" id="autologin"   /> Remember me</label></dd>
                    </dl>
                    <dl>
                        <dt>&nbsp;</dt>
                        <dd><input type="submit" name="login" value="Login" class="button1" /></dd>
                    </dl>
                </fieldset>
            </div>
        </div>
    </div>
    <div class="panel">
        <div class="inner">
            <div class="content">
                <h3>Register</h3>
                <p>In order to login you must be registered. Registering takes only a few moments but gives you increased capabilities.</p>
                <hr class="dashed" />
                <p><a href="" class="button2">Register</a></p>
            </div>
        </div>
    </div>
</form>

via Chebli Mohamed