No healthy upstream error

Hey guys,

I’m trying to run microservices made with Jhipster on Istio but i’m getting an error “no healthy upstream” when i try to reach it through my browser. I was following this tutorial https://medium.freecodecamp.org/jhipster-microservices-with-istio-service-mesh-on-kubernetes-a7d0158ba9a3 since i’m completely new with kubernetes and istio. Does anybody know what the problem could be ?

Thanks in advanced.