Problem Contactform / easyfancybox

Hi everybody,

First of all sorry for my bad english.

I have a problem with using easy fancybox and contactform7 in my functions.php

I edited my functions.php so you have request the price of a product.

add_filter(‘woocommerce_empty_price_html’, ‘custom_call_for_price’);

function custom_call_for_price() {
return ‘Call for price’;
}

No i wanted to change this so when clicking on call for price it pop ups a contact form.

i changed it like this:

add_filter(‘woocommerce_empty_price_html’, ‘custom_call_for_price’);

function custom_call_for_price() {
return ‘Prijs aanvraag
<div style=”display:none” class=”fancybox-hidden”>
<div id=”contact_form_pop”>
[contact-form-7 id=”2302″ title=”Prijsaanvraag”]
</div>
</div>
‘;
}

But now, when clicking on Prijs aanvraag (price request) it shows
The requested content cannot be loaded.
Please try again later.

here is the link: https://test.futuregrowing.nl/shop/aquarium-paneel-540w/

Is there anybody that can help me solving this problem? thank you!!