Getting this error :

Exception processing template “index”: Exception evaluating SpringEL expression: “bookingForm.name” (template: “index” – line 139, col 29)

org.thymeleaf.exceptions.TemplateProcessingException: Exception evaluating SpringEL expression: “bookingForm.name” (template: “index” – line 139, col 29)
at org.thymeleaf.spring6.expression.SPELVariableExpressionEvaluator.evaluate(SPELVariableExpressionEvaluator.java:292) ~[thymeleaf-spring6-3.1.2.RELEASE.jar:3.1.2.RELEASE]

Booking Form

Time

Date

–>

Comfort

Cheap

                            <span>Standard</span>
                            <input name="comfort" value="lux" th:checked="${bookingForm.comfort=='lux'}" type="radio" id="tmRadio2"  />
                            

                            <span>Lux</span>
                            
                        </div>
                        <div class="clear"></div>
                        <span style="color: red;" th:if="${#fields.hasErrors('adult')}" th:errors="*{adult}" ></span>
                        <div class="fl1 fl2">
                            <em>Adults</em>
                            <select name="adult" class="tmSelect auto" data-class="tmSelect tmSelect2" data-constraints="">
                                <option>1</option>
                                
                                <option>2</option>
                                <option>3</option>
                                <option>4</option>
                            </select>
                            <div class="clear height1"></div>
                        </div>
                        <span style="color: red;"  th:if="${#fields.hasErrors('children')}" th:errors="*{childre}"></span>
                        <div class="fl1 fl2">
                            <em>Children</em>
                            <select name="children" class="tmSelect auto" data-class="tmSelect tmSelect2" >
                                <option>0</option>
                                <option>1</option>
                                <option>2</option>
                                <option>3</option>
                            </select>
                        </div>
                        <div class="clear"></div>
                        <div class="tmTextarea">
                            <textarea name="message" th:text="${bookingForm.message}" placeHolder="Message" ></textarea>
                            <span style="color: red;" th:if="${#fields.hasErrors('message')}" th:errors="*{message}" ></span>
                        </div>
                        <button class="btn">Submit</button>
                    </form>

Here Is my Controller##

@RestController
public class MyController
{

private ContactFormServiceImpl contactFormServiceImpl;

 @Autowired
public void setContactFormServiceImpl(ContactFormServiceImpl contactFormServiceImpl) {
    this.contactFormServiceImpl = contactFormServiceImpl;
}


  //Booking Form

@GetMapping(path={"","home","welcome","index"})
public String welcomeView(Model m)
{
    m.addAttribute("bookingForm",new BookingForm() );
    return"index";
}

@PostMapping("bookingform")
public String bookingForm(@Valid @ModelAttribute("bookingForm") BookingForm bookingForm, BindingResult bindingResult, Model m)
{
        if (bindingResult.hasErrors()) 
        {
            m.addAttribute("bindingResult", bindingResult);
            return "index";
        }
        System.out.println(bookingForm);
       return "redirect:/index";
}