Kubernetes nginx-ingress controller always 401 http response - kubernetes

Question

I'm researching kubernetes and trying to configure nginx-ingress controller. So I created yaml config file for it, like this:
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: ingress-srv
annotations:
kubernetes.io/ingress.class: nginx
nginx.ingress.kubernetes.io/use-regex: 'true'
spec:
rules:
- host: acme.com
http:
paths:
- path: /api/platforms
pathType: Prefix
backend:
service:
name: platforms-clusterip-service
port:
number: 80
- path: /api/c/platforms
pathType: Prefix
backend:
service:
name: command-clusterip-service
port:
number: 80
And created relevant services like this:
apiVersion: apps/v1
kind: Deployment
metadata:
name: platforms-depl
spec:
replicas: 1
selector:
matchLabels:
app: platformservice
template:
metadata:
labels:
app: platformservice
spec:
containers:
- name: platformservice
image: yuriyborovskyi91/platformsservice:latest
---
apiVersion: v1
kind: Service
metadata:
name: platforms-clusterip-service
spec:
type: ClusterIP
selector:
app: platformservice
ports:
- name: platformservice
protocol: TCP
port: 80
targetPort: 80
And added acme.com to windows hosts file, like:
127.0.0.1 acme.com
But when trying to access http://acme.com/api/platforms or any other api route, I'm receiving 401 http error, and confused by it, because I didn't configure any authorization. Using all default settings. If to call my service by nodeport everything works fine.
Output of my kubectl get services, where service I'm trying to access running:
and response of kubectl get services --namespace=ingress-nginx