The reason why the paper registration fee can't be handed in on the computer is the network delay. If the registration fee is spent, the payment status is still unsuccessful. Due to network instability or differences in banking systems, the payment is successful, and the network cannot give timely feedback. Candidates can check the next day to confirm whether the payment is successful. If the payment is confirmed to be successful and the corresponding registration number is correct, the registration system will not affect the registration.