TypeError: dashboard() missing 1 required positional argument: 'username'

from flask import Flask, render_template, redirect, url_for
from flask_bootstrap import Bootstrap
from flask_wtf import FlaskForm, recaptcha, form
from werkzeug.security import generate_password_hash, check_password_hash
from wtforms import StringField, PasswordField, BooleanField
from wtforms.validators import InputRequired, Email, Length
from flask_sqlalchemy import SQLAlchemy
from flask_login import (LoginManager,
                         UserMixin, login_user,
                         current_user, login_required)

app = Flask(__name__)
app.secret_key = "*"

app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///db.sqlite3'
bootstrap = Bootstrap(app)
db = SQLAlchemy(app)
login_manager = LoginManager()
login_manager.init_app(app)
login_manager.login_view = 'signup'

class User(UserMixin, db.Model):
    id = db.Column(db.Integer, primary_key=True)
    email = db.Column(db.String(15))
    username  = db.Column(db.String(15))
    password  = année = db.Column(db.String(25))
    description = db.Column(db.String(15))
    classe_module = db.Column(db.String(15))
    classe_gr = db.Column(db.String(15))

@login_manager.user_loader
def load_user(user_id):
return User.query.get(int(user_id))

class LoginForm(FlaskForm):
    description = StringField('description', validators=[InputRequired(), Length(min=10, max=300)])
    username = StringField("nom d'utilisatuer", validators=[InputRequired(), Length(min=4, max=100)])
    password = PasswordField('mot de passe', validators=[InputRequired(), Length(min=8, max=80)])
    remember = BooleanField('rester connecter')

class RegisterForm(FlaskForm):
    email = StringField('email', validators=[InputRequired(), Email(message='Email invalide'), Length(max=50)])
    username = StringField("nom d'utilisatuer", validators=[InputRequired(), Length(min=4, max=100)])
    password = PasswordField('mot de passe', validators=[InputRequired(), Length(min=8, max=80)])

@app.route('/Auth/Se connecter', methods=['GET', 'POST'])
def login():
    form = LoginForm()
    if form.validate_on_submit():
        user = User.query.filter_by(username=form.username.data).first()
        if user:
            if check_password_hash(user.password, form.password.data):
                login_user(user, remember=form.remember.data)
                return redirect(url_for("dashboard", username=form.username.data))

        return '<h1>Invalid username or password</h1>'

    return render_template('Auth/login.html', form=form)

@app.route("/Auth/S'inscrie", methods=["POST", "GET"])
def signup():
    form = RegisterForm()
    if form.validate_on_submit():
        hashed_password = generate_password_hash(form.password.data, method='sha256')
        new_user = User(username=form.username.data, email=form.email.data, password=hashed_password)
        db.session.add(new_user)
        db.session.commit()
        return redirect(url_for("dashboard", username=form.username.data))
    return render_template("Auth/signup.html", form=form)

@app.route('/Auth/compte', methods=['POST', "GET"])
def dashboard(username):
    return render_template("Auth/dashboard.html", username=username, form=form)

Auth/login.html

{% extends 'base.html' %}
{% import 'bootstrap/wtf.html' as wtf %}

{% block title %}Se connecter{% endblock %}

{% block nav%}
        {{ super() }}
{% endblock %}

{% block content %}
<form class="form-signin" method="POST" action="/Auth/Se connecter">
        <h2 class="form-signin-heading">s'identifier</h2>
        {{ form.hidden_tag() }}
        {{ wtf.form_field(form.username) }}
        {{ wtf.form_field(form.password) }}
        {{ wtf.form_field(form.remember) }}
        <button class="btn btn-lg btn-primary btn-block" type="submit">Sign in</button>
</form>
{% endblock %}

Auth/dashboard.html

{% extends 'base.html' %}
{% import 'bootstrap/wtf.html' as wtf %}

{% block title %}Compte{% endblock%}

{% block content %}

{% endblock %}
    <h1>{{ username.label }}</h1>

{% block footer %}
{% endblock %}