[2025-5-21>>>12:7:39]>>>Exam--topic>>>>TypeError: Cannot read properties of undefined (reading 'length')
[2025-5-21>>>12:9:7]>>>Exam--topic>>>>TypeError: Cannot read properties of undefined (reading 'length')
[2025-5-21>>>12:9:17]>>>Exam--topic>>>>TypeError: Cannot read properties of undefined (reading 'length')