I need help for creating a Sling model for reading i18n language json's and export the data as json to frontend.

Hi all, I created graphql persisted queries from POSTMAN and they are working fine on author and publish instance but when I am making GET call on dispatcher following error is coming. Also I have made the required changes to dispatcher.any file. Can someone help me with it?

I am trying to create a nested multifield but the inner multifield data is not populating. Attatching my sling model and sit-ly code. Please help I am a fresher.