Ecshop Vietnam Application Error

The application could not run because of the following error:

Type: E_WARNING [2]

Message: Division by zero in /home/mtkegqtx/domains/thanhaudio.vn/public_html/includes/lib_goods.php

Line: 506

Stack trace:

#0 /home/mtkegqtx/domains/thanhaudio.vn/public_html/includes/lib_goods.php(506): ErrorHandler->handleError(2, 'Division by zer...', '/home/mtkegqtx/...', 506, Array)
#1 /home/mtkegqtx/domains/thanhaudio.vn/public_html/includes/lib_goods.php(550): get_discount('0.00', '2600000.00')
#2 /home/mtkegqtx/domains/thanhaudio.vn/public_html/modules/goods.php(40): get_goods_info(409)
#3 /home/mtkegqtx/domains/thanhaudio.vn/public_html/index.php(28): include_once('/home/mtkegqtx/...')
#4 {main}