Uncaught SyntaxError: Unexpected token :

Uncaught SyntaxError: Unexpected token :

I have a JSONP request like:

    $.ajax({
        type: 'GET',
        dataType: 'jsonp',
        accepts: 'application/json',
        callback: 'callback',
        done: function (result) {
            console.log('Success');
            console.log(result);
        },
        error: function (status) {
            console.log('Error');
            console.log(status);
        }
    });

The web service at  ' https://iwebappdev/Services/CorporationsService/ForeignLLCPenalty/1988' will return a JSON object of the form 

{ "ArFee": 1195, "Penalty": 647.5, "Total": 1842.5 }

But with I execute this function I get

Uncaught SyntaxError: Unexpected token :

Is the token the ':' in the JSON object? Where do I look for this syntax error?

Thank you.

Kevin