Error while doing GET on . net CORE

Question

Good afternoon, I am studying . net core with Angular and when making a GET request I have the following error:

: Microsoft.AspNetCore.Diagnostics.Developerexceptionpagemiddleware[1] An unhandled Exception has occurred while executing the request. Microsoft.AspNetCore.Routing.Patterns.Routepatternexception: In a route Parameter, '{' and '}' must be escaped with '{' and '}}'.

using System.Threading.Tasks;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using ProAgil.Domain;
using ProAgil.Repository;

namespace ProAgil.API.Controllers
{
    [Route("api/[controller]")]
    [ApiController]
    public class EventoController : ControllerBase
    {
        private readonly IProAgilRepository _repo;
        public EventoController(IProAgilRepository repo)
        {
            _repo = repo;
        }

        // GET api/values
        [HttpGet]
        public async Task<IActionResult> Get()
        {
            try
            {
                var results = await _repo.GetAllEventoAsync(true);
                return Ok(results);
            }
            catch (System.Exception)
            {
                return this.StatusCode(StatusCodes.Status500InternalServerError, "Banco de Dados Falhou");
            }

        }

        [HttpGet("{EventoId}")]
        public async Task<IActionResult> Get(int EventoId)
        {
            try
            {
                var results = await _repo.GetAllEventoAsyncById(EventoId, true);
                return Ok(results);
            }
            catch (System.Exception)
            {
                return this.StatusCode(StatusCodes.Status500InternalServerError, "Banco de Dados Falhou");
            }

        }

        [HttpGet("getByTema/{tema}")]
        public async Task<IActionResult> Get(string tema)
        {
            try
            {
                var results = await _repo.GetAllEventoAsyncByTema(tema, true);
                return Ok(results);
            }
            catch (System.Exception)
            {
                return this.StatusCode(StatusCodes.Status500InternalServerError, "Banco de Dados Falhou");
            }

        }

        [HttpPost]
        public async Task<IActionResult> Post(Evento model)
        {
            try
            {
                _repo.Add(model);

                if(await _repo.SaveChangesAsync())
                {
                    return Created($"/api/evento/{model.Id}", model);
                }
            }
            catch (System.Exception)
            {
                return this.StatusCode(StatusCodes.Status500InternalServerError, "Banco de Dados Falhou");
            }
            return BadRequest();

        }

        [HttpPut]
        public async Task<IActionResult> Put(int EventoId, Evento model)
        {
            try
            {

                var evento = await _repo.GetAllEventoAsyncById(EventoId, false);

                if(evento == null) return NotFound();

                _repo.Update(model);

                if(await _repo.SaveChangesAsync())
                {
                    return Created($"/api/evento/{model.Id}", model);
                }
            }
            catch (System.Exception)
            {
                return this.StatusCode(StatusCodes.Status500InternalServerError, "Banco de Dados Falhou");
            }
            return BadRequest();

        }

        [HttpDelete]
        public async Task<IActionResult> Delete(int EventoId)
        {
            try
            {

                var evento = await _repo.GetAllEventoAsyncById(EventoId, false);

                if(evento == null) return NotFound();

                _repo.Delete(evento);

                if(await _repo.SaveChangesAsync())
                {
                    return Ok();
                }
            }
            catch (System.Exception)
            {
                return this.StatusCode(StatusCodes.Status500InternalServerError, "Banco de Dados Falhou");
            }
            return BadRequest();

        }
    }
}

and in Postman I make the request: http://localhost:5000/api/event/1

I believe this is some problem with . net core and route, but I don’t know where to fix it. grateful.