Hello Kumpol,
Thanks for providing the information that we requested.
I have removed the authenticator from your "Kampolhomen99@outlook.co.th" Guild Wars 2 game account.
For instructions on how to re-activate this feature on the account, check out our article on the Authenticator App. For more information on authentication in general, as well as other authentication options like text and voice messages, see our article on Securing Your Account With Authentication.
Please let us know if you have any other issues or questions.
Regards,