請問 symfony contact table API 有連接成功 但 前端vue.js contact頁面 form送出去 後端資料庫收不到? 怎麼設定 submit form後 出現你的 message已成功送出 ?

contact.vue

<div class="locationD">
  <div class="columnL">
    <iframe
      src="https://www.google.com/maps/embed?pb=!1m16!1m12!1m3!1d10502.198249326368!2d2.3459649739204322!3d48.84772998914202!2m3!1f0!2f0!3f0!3m2!1i1024!2i768!4f13.1!2m1!1s2%20au%2018%20eur%20Saint-Victor%2075005!5e0!3m2!1sfr!2sfr!4v1646487629363!5m2!1sfr!2sfr"
      width="700"
      height="600"
      style="border: 0"
      allowfullscreen=""
      loading="lazy"
    ></iframe>
  </div>
  <div class="columnR"></div>
  <img
    src="../../img/ParisAddress.jpg"
    alt="link"
    width="1130"
    height="200"
    class="img-fluid"
  />
</div>

components/ContactForm.vue

    <div class="container-fluid">
        <div class="row-fluid">
            <h1>Des questions ? Envie d’avoir des infos ? <br><span style="color: #FFB400;">Contactez nous </span> </h1>

        </div> 

        <div class="formulaire">
            <b-card-group deck>

            <b-card >
                <div>
                <b-form  v-on:submit.prevent="onSubmit">
                    <b-form-group
                    id="input-group-2"
                    label="Name:"
                    label-for="Name"> 

                    <b-form-input
                    id="Name"
                    type="Name"
                    placeholder="Enter your name">
                    </b-form-input>                    
                    </b-form-group>

                    <b-form-group
                    id="input-group-1"
                    label="Email address:"
                    label-for="input-1"
                    description="We'll never share your email with anyone else.">
                    
                    <b-form-input
                    id="email-1"
                    type="email"
                    placeholder="Enter your email">	
                    </b-form-input>			
                    </b-form-group>	

                    <b-form-textarea
                        id="textarea-rows"
                        placeholder="Your message"
                        rows="8">
                    </b-form-textarea>

                    <b-button @click='submitForm(contactForm.id)' type="submit" variant="primary"> Sent </b-button>			
                </b-form>
                </div>
            </b-card>
            </b-card-group>
        </div>
    </div>     
</section>