Cubecart 3 sql php bug on checkout - Fatal error

I have a website running cubecart version 3, this site was recently moved from 1 host to another host, after this move the system works fine apart from 1 error, when the customer checks out and clicks the proceed button to pay by paypal the following error appears: Fatal error: Call to undefined function repeatvars() in /data/www/vhosts/[login to view URL] on line 166 the xxxxxx is where the domain was and has been removed for security reasons. I am looking for an experienced cubecart 3 programmer to fix this small bug which results in the user being unable to pay for their goods. I am thinking this is a quick fix for the right person. If you have cubecart experience and can fix this please bid, let me know why you think you can fix this bug quickly and efficiently Thank you.