Friend Score Error

//The error is coming from this line:

        var elements = $(data).find('table.table-recently-updated > tbody > tr:nth-child(n) > td:nth-child(2)').not('.borderClass.fw-b.ac');

Uncaught Error: Syntax error, unrecognized expression:

//insert the entirety of stats page HTML Here

    at Function.st.error (eval at <anonymous> (:2:479), <anonymous>:7:10926)
    at ft (eval at <anonymous> (:2:479), <anonymous>:7:17138)
    at wt (eval at <anonymous> (:2:479), <anonymous>:7:19823)
    at Function.st [as find] (eval at <anonymous> (:2:479), <anonymous>:7:6140)
    at init.find (eval at <anonymous> (:2:479), <anonymous>:7:20941)
    at new init (eval at <anonymous> (:2:479), <anonymous>:6:1126)
    at b (eval at <anonymous> (:2:479), <anonymous>:6:206)
    at Object.eval [as success] (eval at <anonymous> (:2:479), <anonymous>:21:21)
    at c (eval at <anonymous> (:2:479), <anonymous>:6:7857)
    at Object.fireWith [as resolveWith] (eval at <anonymous> (:2:479), <anonymous>:6:8658)


It remember this working at one point, so I don't know why its not anymore, but it can be fixed by doing something like this (https://stackoverflow.com/questions/10585029/parse-a-html-string-with-js):

    $.get(url + '/stats', function(data) {
        var el = document.createElement( 'html' );
        el.innerHTML = data;
        var elements = $(el).find('table.table-recently-updated > tbody > tr:nth-child(n) > td:nth-child(2)').not('.borderClass.fw-b.ac');
        var sum = 0;
        var count = 0;
        $(elements).each( function() {
            var score = $(this).text();
            if(!isNaN(score)) {
                sum += parseInt(score);
                count += 1;
            }
        });