문제 1번 에러

안녕하세요, 1번 문제에서 선생님이 하신 것과 똑같은 부분을 고쳤는데 잘 되지 않아서 문의드립니다ㅠ // firstname 과 lastname 모두 검색시 조회가 되지 않음. 

콘솔에는 하기와 같이 뜸.

2021-03-29 23:14:12.829 DEBUG 7972 --- [nio-8008-exec-1] o.s.web.servlet.DispatcherServlet        : GET "/owners?firstName=betty", parameters={masked}

2021-03-29 23:14:12.830 DEBUG 7972 --- [nio-8008-exec-1] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped to org.springframework.samples.petclinic.owner.OwnerController#processFindForm(Owner, BindingResult, Map)

2021-03-29 23:14:12.833 DEBUG 7972 --- [nio-8008-exec-1] o.s.w.s.v.ContentNegotiatingViewResolver : Selected 'text/html' given [text/html, application/xhtml+xml, image/avif, image/webp, image/apng, application/xml;q=0.9, application/signed-exchange;v=b3;q=0.9, */*;q=0.8]

2021-03-29 23:14:12.854 DEBUG 7972 --- [nio-8008-exec-1] o.s.web.servlet.DispatcherServlet        : Completed 200 OK