I apologize for this, a fix I made affected signups in the last revision.I apologize for this, a fix I made affected signups in the last revision. The problem has now been fixed, please re-download revision #6 if you've installed it today and reupload the e107_handlers/mysql_class.php file to your server.
e107 is open-source and of course, free. None of the developers of this software are paid, but donations do help to cover our monthly dedicated-server costs. If you like and use e107, please consider making a $5 monthly donation. Every little bit helps and is greatly appreciated. Thank you.