It looks like you may have run the wizard multiple times and not cleaned up all of the code in between. You had some references to the form element named "Log_In_group_UserEmail" instead of "Log_In_group_Email" and the form element was named "Log_In_group_Email".
I updated all of the references to "Log_In_group_Email" and cleaned up any repeated code and the page seems to be working now.