update theme manually issue when trying to conect to envato

Hello, I was following the instructions I found in one of your questions (https://kriesi.at/support/topic/upgrade-from-enfold-4-4-1-to-5-7-without-installation-log-data/).
To update the theme I bought a new one in order to have the site update and now I am not able to conect the envato token and found the next error:

Last time we checked the token we were not able to connected to Envato:

Purchases could not be accessed
Username could not be accessed (needed for your information only)
E-Mail could not be accessed (needed for your information only)

Following errors occurred:

Purchases: Your private token is invalid.
username Your private token is invalid.
email Your private token is invalid.
Purchases: A problem occurred accessing your purchases. Unable to check for updates.

What can I do?