Can you please tell me the framework used in your application.
Please send me php pages for that, Please check database table required this email. if you defined in database table not null then after removing from php page, it will again not work. so it will be better to check database or you can send me the database structure. That i can ensure you, it will definitely work.
I have a question not related, but as per user aspect registration show up the form , not any social site registration, but in signin . only option to login with social media. Is it correct, Once i fill up the sign up form, How i will sign with my username and password.
I know, this is not my work, but as i see, i think its not correct.
i have 7 yerars of experience in PHP, codeigniter, yii and database design. Please ping me on chat and send us the file.