An ActionView::Template::Error occurred in locations#show:

 comparison of Gateway with Gateway failed
 app/models/location.rb:316:in `max'


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

 * URL        : https://bikelink.org/locations/178
 * HTTP Method: GET
 * IP address : 46.227.11.68
 * Parameters : {"controller"=>"locations", "action"=>"show", "id"=>"178"}
 * Timestamp  : 2021-06-29 16:19:29 UTC
 * Server : www-3.internal.bikelink.org
   * Rails root : /var/www/bikelink
 * Process: 26231

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

 * session id: [FILTERED]
 * data: {"session_id"=>"f5bdb2923dcf59ec20cf6a59bf5fa7a3"}

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

 app/models/location.rb:316:in `max'
 app/models/location.rb:316:in `last_checkin_str'
 app/views/locations/public_show.html.erb:20
 app/controllers/locations_controller.rb:118:in `block (2 levels) in show'
 app/controllers/locations_controller.rb:107:in `show'