Why can't I access my AWS EKS deployment/service? - amazon-web-services

Question

I have an AWS EKS cluster, in which there are two pods running: one for a redis cache, and the other for a GraphQL API.
Now I will present the config files for my kubernetes cluster.
cache-deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: chatto-cache-deployment
spec:
replicas: 1
selector:
matchLabels:
tier: cache
template:
metadata:
labels:
tier: cache
spec:
containers:
- name: cache-container
image: redis
imagePullPolicy: Always
resources:
limits:
memory: 512Mi
cpu: "1"
requests:
memory: 256Mi
cpu: "0.2"
cache-service.yaml
apiVersion: v1
kind: Service
metadata:
name: chatto-cache-service
spec:
type: ClusterIP
selector:
tier: cache
ports:
- protocol: TCP
port: 6379
targetPort: 6379
server-deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: chatto-server-deployment
spec:
replicas: 1
selector:
matchLabels:
tier: server
template:
metadata:
labels:
tier: server
spec:
containers:
- name: server-container
image: rocketblast2481/chatto-server
imagePullPolicy: Always
resources:
limits:
memory: 512Mi
cpu: "1"
requests:
memory: 256Mi
cpu: "0.2"
env:
- name: DB_USERNAME
valueFrom:
configMapKeyRef:
name: env-config-map
key: DB_USERNAME
- name: DB_PASSWORD
valueFrom:
configMapKeyRef:
name: env-config-map
key: DB_PASSWORD
- name: DB_HOST
valueFrom:
configMapKeyRef:
name: env-config-map
key: DB_HOST
- name: DB_PORT
valueFrom:
configMapKeyRef:
name: env-config-map
key: DB_PORT
- name: DB_DATABASE
valueFrom:
configMapKeyRef:
name: env-config-map
key: DB_DATABASE
- name: REDIS_HOST
valueFrom:
configMapKeyRef:
name: env-config-map
key: REDIS_HOST
- name: REDIS_PORT
valueFrom:
configMapKeyRef:
name: env-config-map
key: REDIS_PORT
server-service.yaml
apiVersion: v1
kind: Service
metadata:
name: chatto-server-service
spec:
type: LoadBalancer
selector:
tier: server
ports:
- protocol: TCP
port: 80
targetPort: 80
Okay, here's the problem. As you can see, the server-service is of type LoadBalancer.
When I run the command, kubectl get services, this is the output:
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
chatto-cache-service ClusterIP 10.100.73.117 <none> 6379/TCP 5h17m
chatto-server-service LoadBalancer 10.100.11.249 afe3adae38c0242c8be0795609ee8a6c-424128423.us-east-2.elb.amazonaws.com 80:31643/TCP 17m
kubernetes ClusterIP 10.100.0.1 <none> 443/TCP 6h35m
I copied the EXTERNAL-IP of the chatto-server-service and slapped it into Postman, but I get an error that the connection refused.
Could someone tell me why this might be happening? It might be because of the way I have configured the security groups, but I don't know for sure.
Thanks for any feedback and help and please let me know if you need any other information.
Edit:
Here is a screenshot of the load balancer: