Sometimes times it does not work at all, sometimes I wait for a few mins then it will work, some times its fine!

But I checked on default and it does it there as well, so its NOT your theme.

Thanks for your help!

LOL5tar did you find a fix to this problem? I’m having same issue on the same button under deilvery. Any help would be appreciated!

Hi,

Most likely, the problem is caused by terminated ajax requests, when a user clicks on a button several times. Every subsequent click sends several simultaneous ajax requests to the server. These requests are ‘light’ and shouldn’t cause a big server load, but it could happen (especially on slower servers, e.g. shared hosting) and some of the requests could be terminated. Even if they don’t cause server load and no termination occurs, there is a good change for a so called ‘race condition’. When a race condition occurs, the ajax events are not called in the desired order and this causes mess, which could prevent the checkout form from responding.

This is solely an opencart issue, but it could be easily fixed (or at least the chance to occur could be minimized). What needs to be done is to ‘block’ the ‘continue’ button until all ajax requests arrive. This way, no additional requests will be fired, if the user keeps clicking the button before information from the server has arrived.

@Lol5tar, You should keep in mind however, that we reproduced the issue on your server, but not on ours – shoppica2.com. This means, that most likely the terminated requests are caused by a slow server response. It would be a good idea to try with another hosting solution until this issue is fixed.

We could (and probably will) address this issue, but it needs good testing and proper error messages in case of terminated requests, so we will leave it for a future release. We are putting it on our ToDo list. No promises or ETA here, though.

Best,
ThemeBurn team