Tu Do Nguyen

When I used Chrome and logged in this site "https://epayment.customs.gov.vn/epaymentportal/login", I could not log in because the warning "security code wrong" although I had entered exactly the security code (of course the user name and password had been entered exactly) The problem doesn't occur when I exit Kaspersky before start Chrome or I use another browser with Kaspersky active. Please help. Thanks