Show scores explodes when the student is removed and has scores

[ismaelisuani]

No route matches {:action=>"send_email_summary", :controller=>"enrollments", :format=>:html, :user_id=>#<User id: 5027, name: "Ismael", lastname: "Isu
ani", email: "ismaelisuani@gmail.com", encrypted_password: "$2a$10$2hpZ6gByafXddPwE4VqyKunQDhRvKkOr74QFEGqKd0Jf...", reset_password_token: "Jfj7Qy1U1R
eHmst3kPZP", reset_password_sent_at: "2013-08-26 16:56:41", remember_created_at: nil, sign_in_count: 202, current_sign_in_at: "2013-08-26 16:41:36", l
ast_sign_in_at: "2013-08-24 15:13:15", current_sign_in_ip: "186.39.152.161", last_sign_in_ip: "190.176.42.196", roles_mask: 1, lock_version: 215, crea
ted_at: "2013-01-04 14:02:32", updated_at: "2013-08-26 16:56:41", avatar: nil, kinships_in_chart_count: 1, inverse_kinships_in_chart_count: 0>, :id=>n
il}