Facing an isue wihile creating the schema---Training environment

Facing a issue while creating the new schema, which shows the error as circular dependency on schema extension nms:recepient 

Actually took the training logins, while creating an schema it shows as option as create a new table with data template but as per the instructor video it shows as create a new table with data model. so i think the issue occurs while creating a schema.

Please help me with the solution for the above