Hello I am in need of help . I have been having difficulties installing the manychat pixel for a few days now.  I installed the base pixel on all pages funnel and installed the below script for the custom conversion event on the page I want it to fire on.   Is there something wrong with the script below that would be causing my issue?

<!-- Conversion Event -->

<script type="text/javascript">

window.addEventListener('load', function () {

window.MC_PIXEL.fireLogConversionEvent('rewards_welcome_offer_reservation_booked');

}) ;

</script>