Help please.... Javascript (Jquery) -> TypeError: $(...).offset(...) is undefined

Help please.... Javascript (Jquery) -> TypeError: $(...).offset(...) is undefined

I'm from Brazil. My english isn't very good rsrs

Error in my console Javascript

error in Firefox -> TypeError: $(...).offset(...) is undefined

error in Chrome -> Uncaught TypeError: Cannot read property 'top' of undefined

This work was not that I did. I just maintenance.

Can anyone help me, I'll send the error code excerpt

$(document).ready(function(){
    $(window).scroll(function() {
        clearTimeout($.data(this, 'scrollTimer'));
        $.data(this, 'scrollTimer', setTimeout(function() {
            var eTop = $('section.campanhas .clube-theodor').offset().top; //get the offset top of the element
            if(eTop - ($(window).scrollTop()+$(window).height()) < 0) {
                $('section.campanhas .conteudo h2.campanha.clube-theodor').addClass("animated fadeInLeft visibility");
                $('section.campanhas .conteudo h2.campanha.theodor-personalizado').addClass("animated fadeIn visibility");
                $('section.campanhas .conteudo h2.campanha.theodor-itinerante').addClass("animated fadeInRight visibility");
            }
        }, 0));
    });
});