Syntax error on single product page

I have all of a sudden started getting this Syntax error causing nothing on the page to load. Essentially, the main store loads fine BUT the single product pages all have this error.

This is the error that pops up in the web console:

fa.error = function(a) {
            throw new Error("Syntax error, unrecognized expression: " + a)
        }, fa.uniqueSort = function(a) {
            var b, d = [], e = 0, f = 0;
            

More specifically, the Syntax error is:
Syntax error, unrecognized expression: .ffb-id-ppmsqj6 ffb-id-”15m0r0mh”

Can anybody help me? The error is listed under jquery.js

I’d appreciate any help possible.

Here are two screenshots of the errors.

Screenshot 1

Screenshot 2

The page I need help with: [log in to see the link]