Deploying Phoenix App on cloud foundry

Hi,
I am trying to deploy phoenix app to cloud Foundry. Somehow phoenix app does not start and I keep getting below error:
2018-06-03T10:36:38.15+0200 [APP/PROC/WEB/0] OUT {“Kernel pid terminated”,application_controller,“{application_start_failure,my_app,{{shutdown,{failed_to_start_child,‘Elixir.MyAppWeb.Endpoint’,{shutdown,{failed_to_start_child,‘Elixir.Phoenix.Endpoint.Handler’,{shutdown,{failed_to_start_child,{ranch_listener_sup,‘Elixir.MyAppWeb.Endpoint.HTTP’},{shutdown,{failed_to_start_child,ranch_acceptors_sup,{listen_error,‘Elixir.MyAppWeb.Endpoint.HTTP’,eafnosupport}}}}}}}}},{‘Elixir.MyApp.Application’,start,[normal,]}}}”}
2018-06-03T10:36:39.32+0200 [APP/PROC/WEB/0] ERR Crash dump is being written to: erl_crash.dump…done
2018-06-03T10:36:39.32+0200 [APP/PROC/WEB/0] ERR Kernel pid terminated (application_controller) ({application_start_failure,my_app,{{shutdown,{failed_to_start_child,‘Elixir.MyAppWeb.Endpoint’,{shutdown,{failed_to_start_child,'Elixir.Phoenix.Endpoi
2018-06-03T10:36:39.34+0200 [APP/PROC/WEB/0] OUT Exit status 1

My Manifest file is below:
applications: