Remove default you need to sign in or sign up message

app/helpers/devise_helper.rb

@@ -1,7 +1,9 @@
 module DeviseHelper
   def flash_to_model_errors(resource)
     if flash.alert
-      resource.errors.add :base, flash.alert
+      if flash.alert != I18n.t("devise.failure.unauthenticated")
+        resource.errors.add :base, flash.alert
+      end
       flash.discard
     end
   end

spec/features/user_spec.rb

@@ -7,6 +7,11 @@ RSpec.describe "User Features" do
       expect(page).to have_current_path("/users/sign_in")
     end
 
+    it "does not see the default devise error message" do
+      visit("/case_logs")
+      expect(page).to have_no_content("You need to sign in or sign up before continuing.")
+    end
+
     it " is redirected to case logs after signing in" do
       visit("/case_logs")
       fill_in("user[email]", with: user.email)