I have an incredibly frustrating problem. We have several customers that are having an issue that we simply can't recreate on our end with any browser. The issue is this:
1. A customer tries to sign up for an event on our site (like this one: https://events.musepaintbar.com/index.php/welcome/edit/738)
2. They select the number of people that they want to come
3. They fill out all of the information on the next page and click "Continue to Checkout"
4. Instead of continuing to the check-out, it takes them back to our calendar (e.g., here: events.musepaintbar.com).
I THINK that the issue is either: i) it's not working with some browser editions (I've tested in the newer versions of all major browsers) or ii) something is being entered into one of the fields that our php doesn't like (for example, it didn't like apostrophes in peoples names for a while).
Please let me know if you think you can figure out what it is. And if you play with it and DEFINITELY know what it is, let me know because there's a good chance I'm going to pick you. :) Please don't say that you know what it is if you don't, though. That would not be fun.
Thanks and look forward to working this out with a smart person out there.