Javascript problem after updating to Version 1.7.4

Hello!

I am getting this error which stops JavaScript from working.

Uncaught ReferenceError: ajax_object is not defined
    at HTMLDocument.<anonymous> (functions-frontend.min.js?ver=1.7.4:1)
    at i (jquery.js?ver=1.12.4:2)
    at Object.fireWith [as resolveWith] (jquery.js?ver=1.12.4:2)
    at Function.ready (jquery.js?ver=1.12.4:2)
    at HTMLDocument.K (jquery.js?ver=1.12.4:2)