NodeJS Application Cannot Access Zuul API Gateway

Question

I created Node.js (using ExpressJS) a microservice and registered it using the Eureka Discovery Server using eureka-js-client.

I already have some Java-based microservices registered with Eureka and using it through the Zuul API Gateway.

When I try to call a specific endpoint on my Node.js microserver through an API gateway, it throws an error:

Caused by: com.netflix.client.ClientException: Load balancer does not 
have available server for client: tryout

Note. tryoutis the name of my application for demo services.