Script not working on elementor page

Hi,
I have support access on for http://bnmprojects.info/best

A script was added to this page:
http://bnmprojects.info/best/make-an-appointment/

But it is not working. Here is the script:
<script type=’text/javascript’ src=’https://housecallpro.com/assets/BookingBar.js?company=b10677d12282471bad899b935876e5b4&path=Best-Mechanical-Heating-And-Air’></script&gt;