Quote Originally Posted by pishkus View Post
Hello,
I've installed OPC v2.5.3 on ZC 2.1.0-alpha2 with ZCA bootstrap template v3.7.3.
On one page checkout page, when no coupon is used and the coupon field is empty, I click on "Apply" and order gets created.
Is this a known issue and I've missed something in the installation process?
Thank you.
It's neither a known issue nor something you've missed. Thanks for the report. I've created this (https://github.com/lat9/one_page_checkout/issues/423) GitHub issue for tracking the change required.