response:

{"error":{"message":"Invalid parameter","type":"OAuthException","code":100,"error_subcode":2388024,"is_transient":false,"error_user_title":"Content in this language already exists","error_user_msg":"There is already English (US) content for this template. You can create a new template and try again.","fbtrace_id":"ALoVeUYlMVxKMGquFSaahNU"}}

HTTP request failed with status 400: {"error":{"message":"Invalid parameter","type":"OAuthException","code":100,"error_subcode":2388024,"is_transient":false,"error_user_title":"Content in this language already exists","error_user_msg":"There is already English (US) content for this template. You can create a new template and try again.","fbtrace_id":"ALoVeUYlMVxKMGquFSaahNU"}}Failed to create template.