laravel 5.6 : I get a error " Syntax error or access violation: 1064 You have an error in your SQL "

I'm in the process of developing the backend of an application and I use laravel in recover I want to select securite question of this user

 $User_data = User::where('email', '=', $email)->leftJoin('secutitequestion', function($join) {
            $join->on('users.id', '=', 'secutitequestion.user_id')->pluck('secutitequestion.securite_question1'
            ,'secutitequestion.answer_securite_question1'
            ,'secutitequestion.securite_question2'
            ,'secutitequestion.answer_securite_question2'
            ,'secutitequestion.securite_question3'
            ,'secutitequestion.answer_securite_question3');
        });

and I this what I get :

"SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'on users.id = secutitequestion.user_id' at line 1 (SQL: select secutitequestion.securite_question1, secutitequestion.answer_securite_question1 on users.id = secutitequestion.user_id)"

via Chebli Mohamed