1. What should I do if the voluntary verification code expires?

Get the verification code again, empty the cache and Cookie, etc.

Re-obtaining verification code: Try to re-obtain my voluntary verification code, which may be invalid due to network delay or other reasons. You can refresh the page or resend the verification code.

Clear the cache and cookies: Sometimes, the browser's cache and cookies may make the I volunteer verification code invalid. You can try to clear the browser's cache and Cookie, then reload the page and enter the verification code.