Cart66 Inventory Tracking Fix (Javascript issue) Wordpress

I need someone to fix a javascript conflict between Cart66 and my Wordpress theme. The issue is within enabling 'Inventory Tracking' within Cart66, and I am notified 'Inventory tracking will not work because your site has javascript errors.' I have this feature working on other themes, but I am unsure what to change within this theme to fix it. My web designer is unavailable today, so would rather pay someone to get it sorted ASAP. Many thanks.