Java　問い合わせフォーム作成

前提・実現したいこと

Java
Springとthymeleafを使い、問い合わせフォームを作成中です。
エラーが発生しているのですが、調べても原因がわかりません。どのようにすれば動くでしょうか。

発生している問題・エラーメッセージ

Whitelabel Error Page
This application has no explicit mapping for /error, so you are seeing this as a fallback.

There was an unexpected error (type=Internal Server Error, status=500).
Error resolving template [form], template might not exist or might not be accessible by any of the configured Template Resolvers
org.thymeleaf.exceptions.TemplateInputException: Error resolving template [form], template might not exist or might not be accessible by any of the configured Template Resolvers

該当のソースコード

package com.example.demo.app.inquiry;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
@Controller
@RequestMapping("/inquiry")

public class InquiryController {
	@GetMapping("/form")
	public String form(InquiryForm inquiryForm, Model model) {
		model.addAttribute("title", "Inquiry Form");
		return "inquiry/form";
	}
	@PostMapping("/form")
	public String formGoback(InquiryForm inquiryForm, Model model) {
		model.addAttribute("title", "Inquiry Form");
		return "inquiry/form";
	}
	@PostMapping("/confirm")
	public String confirm(@Validated InquiryForm inquiryForm, 
			BindingResult result, 
			Model model) {
		if(result.hasErrors()) {
			model.addAttribute("title", "Inquiry Form");
			return "inquiry/form";
		}
		model.addAttribute("title", "Confirm Page");
		return "inquiry/confirm";
	}
}

package com.example.demo.app.inquiry;

import javax.validation.constraints.Email;
import javax.validation.constraints.NotNull;
import javax.validation.constraints.Size;

public class InquiryForm {
	
	@Size(min = 1, max = 20, message = "Please input 20characters or less")
	private String name;
	@NotNull
	@Email(message = "Invalid E-mail Format")
	private String email;
	@NotNull
	private String contents;
	
	public InquiryForm() {
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getEmail() {
		return email;
	}
	public void setEmail(String email) {
		this.email = email;
	}
	public String getContents() {
		return contents;
	}
	public void setContents(String contents) {
		this.contents = contents;
	}


}

<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="UTF-8">
<title th:text="${title}">Insert title here</title>
</head>
<body>
<div th:replace="~{block/header::headerA}"></div>
<h1 th:text="${title}">title</h1>
<h2 th:text="${complete}"></h2>
<form method="post" action="#" th:action="@{/survey/confirm}" th:object="${surveyForm}">
	<label for="age">Age:</label>
	<input id="age" name="age" type="number" th:value="*{age}"><br>
	<div th:if="${#fields.hasErrors('age')}" th:errors="*{age}"></div>
	<label for="email">Satisfaction:</label>
	<input type="radio" name="satisfaction" value="1" th:checked="*{satisfaction == 1}">1
	<input type="radio" name="satisfaction" value="2" th:checked="*{satisfaction == 2}">2
	<input type="radio" name="satisfaction" value="3" th:checked="*{satisfaction == 3}">3
	<input type="radio" name="satisfaction" value="4" th:checked="*{satisfaction == 4}">4
	<input type="radio" name="satisfaction" value="5" th:checked="*{satisfaction == 5}">5<br>
	<div th:if="${#fields.hasErrors('satisfaction')}" th:errors="*{satisfaction}"></div>
	<label for="comment">Comment:</label>
	<textarea name="comment" id="comment" rows="3" cols="40"  th:field="*{comment}"></textarea><br>
	<div th:if="${#fields.hasErrors('comment')}" th:errors="*{comment}"></div>
	<input type="submit" value="Confirm">
</form>
</body>
</html>