Rip everything out and start fresh and re-do your join form with admin. Make a simple form. Make sure it works. If you did anything custom then you need a custom solution aka a professional coder to clean up your file(s).
Below is the legacy version of the Boonex site, maintained for Dolphin.Pro 7.x support.
The new Dolphin solution is powered by UNA Community Management System.
The new Dolphin solution is powered by UNA Community Management System.