Getting this error while accessing collection

Working with Data
8

MovieController

package dev.harsh.movies;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.Mapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.servlet.mvc.method.annotation.ResponseEntityExceptionHandler;

import java.util.List;

@RestController
@RequestMapping("api/v1/movies")
public class MovieController {

    @Autowired
    private MovieService movieService;
    @GetMapping
    public ResponseEntity<List<Movie>> allMovies(){
        return new ResponseEntity<List<Movie>>(movieService.allMovies(), HttpStatus.OK);
    }
}