Need PHP Error Message From A Plugin Resolved / Showing on WooCommerce Product Pages

Hello, I installed the Raffle Ticket Generator plugin on a new website that I just launched last week. I purchased & installed the plugin on last Fri. 10/19 and the plugin functions fine EXCEPT for the fact that a PHP error message appears on all of the product pages that I have set up in WooCommerce. I opened a ticket with the plugin's support team & they sent me a revised [login to view URL] file this morning, but that didn't resolve the issue; therefore, I'm looking for someone here on Freelancer who can help to resolve the problem. *** Here is the error message that appears Warning: A non-numeric value encountered in /home/jzopo74pi70r/public_html/wp-content/plugins/raffle-ticket-generator-gold/includes/functions/[login to view URL](1) : eval()'d code on line 143 ** You can view this error message on page on any of the products on the site I've built for my client. Go here to see what I'm talking about [login to view URL] This site is for a non-profit that is launching a huge campaign for a raffle drawing to raise funds to support wounded veterans who will be given motorized wheelchairs, and I need this issue resolved ASAP today.