WP Booking System: Form ID parameter missing.

Hello,

I was testing the plugin before purchasing it, and I am getting “WP Booking System: Form ID parameter missing.”. I am using the shortcode, since I am using WPBakery Page Builder to build my pages.

I saw a post that said changing the double quotes out for single quotes might fix the issue, but still no go. I have created both the calendar and form (both ID 1).

Here’s the shortcode:
[wpbs id=’1′ title=’yes’ legend=’yes’ legend_position=’side’ display=’1′ year=’0′ month=’0′ language=’auto’ start=’1′ dropdown=’yes’ jump=’no’ history=’1′ tooltip=’1′ highlighttoday=’no’ weeknumbers=’no’ form_id=’1′ auto_pending=’no’ selection_type=’multiple’ selection_style=’normal’ minimum_days=’0′ maximum_days=’0′ booking_start_day=’0′ booking_end_day=’0′]

Thank you in advance!

The page I need help with: [log in to see the link]