Installation issue Kong with Docker

I am having trouble getting Kong to run after installation and am not sure where the problem lies. All steps of the documentation at have been thouroughly followed (installed with the two databases, variables set to “kong-postgres-database” resp. “kong-cassandra-database” so that there should be no conflict). Network is there, containers are running.



So somehow it is there but not accessible… Anyone has an idea of what is going on?

PS: By the way, if it helps understanding the situation: