You test if your prediction is working through Rest Explorer API, you see the result Unable to Predict as output. An example screenshot below
Kingston or later
This happens when you supply incorrect query parameters. Example the input fields for your solution are short_description and location. But you end up testing for description, location.
Go to the solution definition that you are testing the prediction for and check the input fields. Ensure you are using the same input fields in the Query parameter. Please find the screenshot below.
Step 1: Go to Solution definition > pick your solution > check the input fields
Step 2: Now pass the input fields that you had gathered in the last step and try it out in the Rest API explorer