typos and cleanup

app/controllers/exercises_controller.rb

@@ -178,7 +178,6 @@ class ExercisesController < ApplicationController
     user = user_from_api_key
     return render json: {}, status: 401 if user.nil?
 
-    exercise = nil
     ActiveRecord::Base.transaction do
       exercise = ::ProformaService::Import.call(zip: tempfile, user: user)
       exercise.save!
@@ -188,7 +187,8 @@ class ExercisesController < ApplicationController
     render json: {}, status: 401
   rescue Proforma::ProformaError
     render json: t('exercises.import_codeharbor.import_errors.invalid'), status: 400
-  rescue StandardError
+  rescue StandardError => e
+    Raven.capture_exception(e)
     render json: t('exercises.import_codeharbor.import_errors.internal_error'), status: 500
   end
 

config/locales/en.yml

@@ -344,7 +344,7 @@ en:
     import_codeharbor:
       import_errors:
         invalid: Invalid exercise
-        internal_error: An internal error occurred on Codeharbor while importing the exercise.
+        internal_error: An internal error occurred on Codeocean while importing the exercise.
     export_codeharbor:
       label: Export to Codeharbor
       dialogtitle: Export to Codeharbor