Failed to send email verification code and cache failure

The network signal is poor, the email server is faulty, or the cache settings are incorrect.

1. Poor network signal: Due to poor network signal, the verification code failed to be sent. You can try switching to another network environment, or use a device with a stronger signal to send the verification code.

2. Mailbox server failure: Due to mailbox server failure, the verification code failed to be sent. You can try waiting for a while before resending the verification code, or contact your email service provider for help.

3. Incorrect cache settings: The verification code fails to be sent due to incorrect cache settings. You can try clearing your browser cache or changing your browser settings before sending the verification code again.