There was an unexpected error (type=Not Found, status=404)

Авторизация работает, а выход с аккаунта не хочет появляется whitelabel error page. WebSecurityConfig

import com.WebKurs.demo.security.AuthProviderImpl;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;


@Configuration
@EnableWebSecurity
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {

    @Autowired
    private AuthProviderImpl authProvider;

    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.authenticationProvider(authProvider);
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.authorizeRequests()
                    .antMatchers("/signIn","/login","/logout","/registration").anonymous()
                    .antMatchers("/personalCabinet","/vacancy/add","/vacancy/{id}/remove").authenticated()
                .and()
                    .formLogin()
                    .loginPage("/login")
                    .loginProcessingUrl("/login/process")
                .and()
                    .logout()
                .and()
                .csrf().disable();
    }

}

место с полем выхода

<nav class="my-2 my-md-0 mr-md-3">
        <form th:action="@{/logout}" method="post">
            <a class="p-2 text-dark" href="/">Главная</a>
            <a class="p-2 text-dark" href="/personalCabinet">Личный кабинет</a>
            <a class="p-2 text-dark" href="/vacancy/add">Добавить вакансию</a>
            <a id="signIn" class="p-2 text-dark" href="/signIn">Войти</a>
            <input id="signOut" class="p-2 text-dark" type="submit" value="Sign Out"/>
        </form>
    </nav>