Did you fix the error and is it working now correctly?
2021-03-19 02:01:55.434 ERROR 66059 --- [nio-8080-exec-1] o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.example.indianstates.State]: No default constructor found; nested exception is java.lang.NoSuchMethodException: com.example.indianstates.State.<init>()] with root cause