app/controllers/homies_controller.rb

@@ -27,7 +27,7 @@ class HomiesController < ApplicationController
   end
 
   def settle
-    homie_id = params[:homy_id].to_i
+    homie_id = params[:homie_id].to_i
     homie = Homie.find(homie_id)
 
     if homie.settle

config/routes.rb

@@ -4,14 +4,16 @@ Rails.application.routes.draw do
       resources :money_moves
       resources :chips, only: %i[index create destroy]
       resources :chip_values, only: %i[create update destroy]
-      resources :homies do
+      resources :homies, param: :homie_id do
         collection do
           get 'cash'
         end
+        member do
           delete 'settle'
         end
       end
     end
+  end
 
   get '*path', to: 'static#frontend_static'
   root to: 'static#frontend_index_html'