Flask Проблемы с отправкой формы WTForms

Question

Как видно из названия, у меня есть проблема, когда отправка не происходит при нажатии кнопки form.submit (Html Публикация также не происходит).

Я предполагаю, что я есть проблема с размещением некоторых тегов, в частности тега.

, прикрепленный ниже, это профиль. html и моя форма из моего froms.py соответственно

    {%extends "layout.html"%}
{%block content%}
    <!-- Start: Profile Edit Form -->
    {{ form.hidden_tag() }}
    <div class="container profile profile-view" id="profile" style="border: 1px solid grey;background: rgba(223,248,247,0.42);border-radius: 1rem;padding: 34px;box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);margin-bottom: 32px;margin-top: 32px;">
        <form  method="POST" action="" enctype="multipart/form-data">
            <fieldset class="form-group">
            <div class="form-row profile-row" style="margin-right: -5px;">
                <div class="col-md-4 relative">
                    <div class="avatar">
                        <div class="avatar-bg center" style="background: rgba(223,248,247,0.72);width: 168px;height: 200px;border-radius: 3rem;box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);margin-bottom: 17px;margin-left: 0;"><img src="{{image_file}}" style="width: inherit;height: inherit;margin: 0px;border-radius: inherit;"></div>
                    </div>
                <div class="form-group">
                    {{ form.picture.label() }}
                    {{ form.picture(class="form-control", style="padding-top: 3px;") }}
                    {% if form.picture.errors %}
                        {% for error in form.picture.errors %}
                            <span class="text-danger">{{ error }}</span>
                        {% endfor %}
                    {% endif %}
                </div>
                </div>
                <div class="col-md-8">
                    <h1>Profile</h1>
                    <hr style="margin-bottom: 44px;">
                    <div class="form-row">
                        <div class="col-sm-12 col-md-6">
                            <!-- Start: Username -->
                            <div class="form-group">                    
                                {{ form.username.label(class="form-control-label") }}
                                {% if form.username.errors %}
                                    {{ form.username(class="form-control form-control-lg is-invalid") }}
                                    <div class="invalid-feedback">
                                        {% for error in form.username.errors %}
                                            <span>{{ error }}</span>
                                        {% endfor %}
                                    </div>
                                {% else %}
                                    {{ form.username(class="form-control form-control-lg") }}
                                {% endif %}</div>
                            <!-- End: Username -->
                        </div>
                    </div>
                    <!-- Start: Email -->
                    <div class="form-group">                
                        {{ form.email.label(class="form-control-label") }}
                        {% if form.email.errors %}
                        {{ form.email(class="form-control form-control-lg is-invalid") }}
                        <div class="invalid-feedback">
                            {% for error in form.email.errors %}
                            <span>{{ error }}</span>
                            {% endfor %}
                        </div>
                        {% else %}
                        {{ form.email(class="form-control form-control-lg") }}
                        {% endif %}</div>
                    <!-- End: Email -->
                    <div class="form-row">
                        <div class="col-sm-12 col-md-6">
                            <!-- Start: Password -->
                            <div class="form-group">                            
                            {{ form.password.label(class="form-control-label") }}
                            {% if form.password.errors %}
                            {{ form.password(class="form-control form-control-lg is-invalid") }}
                            <div class="invalid-feedback">
                                {% for error in form.password.errors %}
                                <span>{{ error }}</span>
                                {% endfor %}
                            </div>
                            {% else %}
                            {{ form.password(class="form-control form-control-lg") }}
                            {% endif %}</div>
                            <!-- End: Password -->
                        </div>
                        <div class="col-sm-12 col-md-6">
                            <!-- Start: Confirm Password -->
                            <div class="form-group">
                            {{ form.confirm_password.label(class="form-control-label") }}
                            {% if form.confirm_password.errors %}
                            {{ form.confirm_password(class="form-control form-control-lg is-invalid") }}
                            <div class="invalid-feedback">
                                {% for error in form.confirm_password.errors %}
                                <span>{{ error }}</span>
                                {% endfor %}
                            </div>
                            {% else %}
                            {{ form.confirm_password(class="form-control form-control-lg") }}
                            {% endif %}</div>
                            <!-- End: Confirm Password -->
                        </div>
                    </div>
                </fieldset>
                    <div class="form-row">
                        <div class="col-md-12 content-right">
                        <div class="form-group">
                            {{ form.submit(class="btn btn-primary form-btn", type="submit", style="background-color: rgb(43,172,172);") }}
                        </div>
                            <button class="btn btn-danger form-btn" type="reset" style="background-color: rgba(86,198,198,0.81);">CANCEL</button></div>
                    </div>
                </div>
            </div>
        </form>
    </div>
    <!-- End: Profile Edit Form -->
    {%endblock content %}

my Forms.py форма

class UpdateAccountForm(FlaskForm):
    username = StringField('Username',
        validators=[DataRequired(), Length(min=2, max=20)])
    email = StringField('Email',
        validators=[DataRequired(), Email()])
    password = PasswordField('Password', validators=[ Length(min=8, max=20)])
    confirm_password = PasswordField('Confirm Password',
        validators=[ EqualTo('password')])
    picture = FileField('Update Profile Picture', validators=[FileAllowed(['jpg', 'png', 'svg'])])
    submit = SubmitField('Save')

    def validate_username(self, username):
        if username.data != current_user.username:
            user = User.query.filter_by(username = username.data).first()
            if user:
                raise  ValidationError('Username taken. choose a different one.')

    def validate_email(self, email):
        if email.data != current_user.email:    
            user = User.query.filter_by(email = email.data).first()
            if user:
                raise  ValidationError('Email taken. choose a different one.')