Hello @栗文静,
Welcome to TeamViewer Community!
We are sorry that you are seeing an error code while resetting your password.
Does the issue remain if you try on Web? That is to diagnose if the issue is related to your account or to the desktop application.
To be sure, please double check that you are entering an existing TeamViewer account without any typo.
Let us know how it goes, we would be happy to assist you further.
Have a great day!
Best,
Elif