Thank you for your post.
Can you kindly provide more information like which website you received the error message, a screenshot of the erroe message please.
Looking forward to hearing from you soon.
Getting this result trying to submit credentials to remove TFA:
Thank you for sharing the information.
As the message displayed that you will need to enter the 16 digits of recovery code for TFA deactyivation. If you are not able to access to the recovery code, kindly private message your TeamViewer account to community moderator. We are able to assist you for further action.
Thank you Ying_Q. Although the image was cropped, all information was filled out. The image shows a red box without any error message, dev tools showing an http 500 on an API call.