Hi I am getting these 2 error messages....

Warning: Division by zero in /home/iwacbiz/public_html/watches/includes/classes/shipping.php on line 94

Warning: Division by zero in /home/iwacbiz/public_html/watches/includes/classes/shipping.php on line 95

This displays at the top of the page above the header logo on the first page of the checkout process.

I have already checked in the Maximum values in admin and all is ok there. I have also made sure i set up the shipping under configuration in admin, and all is ok there.

I am using v1.3.7

Can anyone help?