fix

app/helpers/exercises_helper.rb

@@ -997,7 +997,7 @@ module ExercisesHelper
   def has_comment? exercise_user, question_ids
     exercise_answer_ids = exercise_user.user.exercise_answers.where(exercise_question_id: question_ids).pluck(:id)
     exercise_shixun_answer_ids = exercise_user.user.exercise_shixun_answers.where(exercise_question_id: question_ids).pluck(:id)
-    exercise_user.comment_status == 1 && (exercise_user.exercise_user_scores.size > 0 || exercise_user.subjective_score >= 0.0 ||
+    exercise_user.commit_status == 1 && (exercise_user.exercise_user_scores.size > 0 || exercise_user.subjective_score >= 0.0 ||
       ExerciseAnswerComment.where(exercise_answer_id: exercise_answer_ids).or(ExerciseAnswerComment.where(exercise_shixun_answer_id: exercise_shixun_answer_ids)).exists?)
   end
 end