Help integrating code snippet with onclick handler in Velo to open a self-booking overlay

I’ve integrated a self-booking overlay for an online booking tool on our Wix website: https://sandraoulmas.com. It’s linked to the “Book Now” button in our header.

The online booking tool also provides a code snippet to allow that self-booking overlay to open to a specific service when clicking a button. However, I’ve not been able to use the onclick function to do so successfully.

This is the code for one of the buttons:

blvd.openBookingWidget({ urlParams: { locationId: ‘f00daf1a-e966-46d6-be3e-8fa14de4e6bf’, path: ‘/cart/menu/Laser%20Treatments/s_6cbb0658-7c7b-49b2-bb63-d550c31507c4’, visitType: ‘SELF_VISIT’ }});

The instructions provided from the online booking software are here: Self-Booking: Link to Specific Items or Categories | Boulevard Support Center.

I’m attaching a screenshot of the formatting I have tried already. I have entered the code on the Services page (because that’s where the button lives). Can anyone suggest what I need to do to alter this code or the formatting to work properly? Thanks in advance!