Action Failing to Get Entities

I want my bot to remember entities mentioned in current session but I am failing to parse the entities. The NLU is able to extract the entities but is failing to get them into the response message and it gives the response “object Object” for each entity. When I click “object Object” I get error message “Cannot GET /undefined”.

I have attached the emulator chat, debugger summary and debugger JSON

I am using {{event.nlu.entities}} for memory.
I am using hosting Duckling and language server locally.