fix

app/controllers/confirmations_controller.rb

@@ -3,7 +3,7 @@ class ConfirmationsController < Devise::ConfirmationsController
     @user = User.find(params[:user][:id])
     if @user.save
       set_flash_message!(:notice, :confirmed)
-      redirect_to edit_user_registration_path(resource_name, resource)
+      redirect_to root_path
     else
       respond_with_navigational(resource.errors, status: :unprocessable_entity){ render :new }
     end