I am currently using Magento 2.1.4 version. I am trying to fetch product attributes via API by using the following endpoint i.e. https://localhost/demowebsite/rest/V1/products/attribute-sets/4/attributes
In the response I get an error: 500 Internal Server Error:
"message":"Internal Error. Details are available in Magento log file. Report ID: webapi-5fcba5ad877a1"