Deploying Spring boot app to digital ocean

I am trying to deploy spring boot app written using jhipster to digital ocean. I user tomcat manager to deploy. The deployment went fine and I am able to access the html pages, but my rest apis are not accessible. I get 404 when I try to access any rest api.

I also don't know where my application startup logs are going (they are not there in localhost-access.$date.log) file under logs directory. AM I missing any configuration?

Any help or suggestion is appreciated.