An ArgumentError occurred in registrations#new:

 ArgumentError
 app/formers/modern/registration_former.rb:21:in `initialize'


-------------------------------
Request:
-------------------------------

 * URL        : https://www.bikelink.org/registrations/new?card_type=bikelink'[0]
 * HTTP Method: GET
 * IP address : 193.70.60.91
 * Parameters : {"card_type"=>"bikelink'[0]", "controller"=>"modern/registrations", "action"=>"new"}
 * Timestamp  : 2021-07-01 17:31:27 UTC
 * Server : www-4.internal.bikelink.org
   * Rails root : /var/www/bikelink
 * Process: 23672

-------------------------------
Session:
-------------------------------

 * session id: [FILTERED]
 * data: {}

-------------------------------
Backtrace:
-------------------------------

 app/formers/modern/registration_former.rb:21:in `initialize'
 app/controllers/modern/registrations_controller.rb:9:in `new'
 app/controllers/modern/registrations_controller.rb:9:in `new'