What does it mean when the subject 2 exam appointment shows 'not attended training'?

[Henry]

It indicates that the applicant for driver's license training has not completed the required hours for subjects 1, 2, and 3. Only after completing these can one schedule the exam. 1. Duration: Subject 1 requires 12 training sessions, subject 2 requires 16 sessions, subject 3 requires at least 300 kilometers of road driving training plus 24 sessions, and subject 4 (safe and civilized driving) requires 10 sessions. Each session lasts 60 minutes, with effective training time not less than 45 minutes. The total hours for C1 and C2 licenses are 62 and 60 sessions respectively, which are over 10 sessions fewer than previous requirements. Each session is 60 minutes, with effective teaching time not less than 45 minutes. Each trainee's daily classroom learning and practical operation time must not exceed 4 sessions. 2. Standards: The timing for subject 1 training starts with system learning time, while subjects 2 and 3 require system check-in photos plus training mileage—none can be omitted. Failure to meet these standards will prevent the applicant from scheduling the exam.