로그인 올바르게 해도 login?error로 갑니다

SecurityConfig.java

@Configuration
@EnableWebSecurity
@RequiredArgsConstructor
public class SecurityConfig extends WebSecurityConfigurerAdapter {

    private final SecurityDetailsService securityDetailsService;

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http
//                .csrf().disable()
                .authorizeRequests()
                .antMatchers("/user/**").authenticated()
                .antMatchers("/admin/**").access("hasRole('ADMIN')")
                .anyRequest().permitAll()
                .and()
                .formLogin()
                .loginPage("/login")
                .loginProcessingUrl("/login")
                .defaultSuccessUrl("/home")
                .usernameParameter("userEmail")
                .and()
                .logout()
                .logoutRequestMatcher(new AntPathRequestMatcher("/logout"))
                .logoutSuccessUrl("/login")
        ;
    }

    @Bean
    public PasswordEncoder passwordEncoder() {

        return new BCryptPasswordEncoder();
    }
}

SecurityDetails.java

@RequiredArgsConstructor
public class SecurityDetails implements UserDetails {

    private final UserEntity userEntity;

    @Override
    public Collection<? extends GrantedAuthority> getAuthorities() {
        Collection<GrantedAuthority> authorities = new ArrayList<>();
        authorities.add(new GrantedAuthority() {
            @Override
            public String getAuthority() {
                return userEntity.getAuthority().toString();
            }
        });
        return authorities;
    }

    @Override
    public String getPassword() {

        return userEntity.getUserPassword();
    }

    @Override
    public String getUsername() {

        return userEntity.getUserEmail();
    }

    @Override
    public boolean isAccountNonExpired() {
        return true;
    }

    @Override
    public boolean isAccountNonLocked() {
        return true;
    }

    @Override
    public boolean isCredentialsNonExpired() {
        return true;
    }

    @Override
    public boolean isEnabled() {
        return true;
    }
}

SecurityDetailsService.java

@Service
@RequiredArgsConstructor
public class SecurityDetailsService  implements UserDetailsService {

    private final UserRepository userRepository;
    @Override
    public UserDetails loadUserByUsername(String userEmail) throws UsernameNotFoundException {
        UserEntity userEntity = userRepository.findByUserEmail(userEmail);
        if(userEntity != null) return new SecurityDetails(userEntity);
        return null;
    }
}

SecurityDetails에서 return값이 boolean인 override 받는 메소드들 다 true로 해줬고

login페이지나 home페이지에는 이미지도 없어서 문제될 게 없다고 생각되는데

도통 이유를 모르겠습니다ㅠㅠㅠ

.usernameParameter("userEmail")
.passwordParameter("userPassword")