There is a known bug with Safari on iPhone or Chrome on Androids. The browser can sometimes cache a previous version of the website which can "break" the button, especially if you've recently made changes to your page (i.e.: changing from ticketed registration to simple registration or vice versa)
To fix this, we recommend clearing your cache, cookies, or both. For step by step instructions, please see:
If your button still isn't working after clearing your cache and cookies, reach out to [email protected].